Regular luggage should contain a change of clothes vacuum packed if possible: khaki cargo pants, 2 pocket khaki shirt w/epaulets, leather money belt, leather suspenders, underwear w/extras, leather safari jacket, wide brim hat, Danner boots. Upon arrival purchase a 3-pack of Bic lighters and several bottles of water.
To serve the needs stated in the OP I would include these items in the emergency bag (some are specifics for the obvious and standards stated):
Maxpedition Condor II back pack
http://www.maxpedition.com/store/pc/CONDOR-II-BACKPACK-109p106.htm
SAS survival handbook, GEM compact version – What to do and how to do it.
SAS Survival Guide Handbook (Collins Gem): John 'lofty' Wiseman: 9780060849825: Amazon.com: Books
Cammenga 3H Tritium lensatic compass (USGI) & topo maps
http://www.cammenga.com/product_p/3h.htm
Kaito Voyager Pro KA600 Emergency Weather Alert radio/light (Going to know what is going on no matter where you are. Also has an LED light.
Amazon.com: Kaito Voyager Pro KA600 Digital Solar/Dynamo AM/FM/LW/SW & NOAA Weather Emergency Radio with Alert & RDS, Black: Electronics
Solio Classic2 Battery Pack and Solar Charger smartphone mini-B USB port solar charger to keep the Smartphone powered.
Amazon.com: Solio Classic2 Battery Pack and Solar Charger (Silver): Sports & Outdoors
Limeade 13,000mAh power pack w/mini-B USB charger port for smartphone for backup power when the sun isn't shining.
Amazon.com: USB External Battery Pack 13000mAh (White Limeade Blast L130X) Charger with built-in Flashlight for Smartphones and other electronic devices: Cell Phones & Accessories
Petzl TacTikka +RGB headlight for hands free use w/unobtrusive red/green/blue light for when you don't want the bright white light to be seen. Plenty of extra batteries.
http://wdww.brightguy.com/Petzl/Petzl+TAC+Tikka+PLUS
http://www.survivalresources.com/Products/Battery_Carrier.html
Amazon.com: Duracell Quantum QU2400BKD09 Alkaline-Manganese Dioxide AAA Battery, 1.5V, -4 to 130 Degrees F (Pack of 24): Industrial & Scientific
AllWeatherFireStarters.com magnesium rod/ferro rod fire starter w/scraper with fatwood sticks (soft magnesium and excellent ferro rod)
http://www.allweatherfirestarters.com/?page_id=4&category=1&product_id=5
Amazon.com : Light My Fire TinderSticks Natural Fire Building Material with 80% Resin (Quantity Varies; Approximately 7.5 Ounces) : Camping Stove Fire Starters : Sports & Outdoors
Sawyer Point Zero Two Absolute 4-liter water purification kit, with Katadyn activated charcoal post filter – 1 million gallons of purified water, not just filtered and the activated charcoal filter get tastes, odors, and some minerals. You may not be able to buy any bottled water. Travel with it empty, fill upon arrival with clean water. Empty before returning.
http://www.sawyerproducts.com/viral.htm
Amazon.com: Katadyn Carbon Cartridge: Sports & Outdoors
40 ounce stainless steel Kleen Kanteen w/fold down ring top w/18 ounce GSI folding handle stainless steel cup (or Canteen Shop Olicamp 16oz stainless steel folding handle graduated cup, Self-reliance outfitters SS water bottle stove, Self-reliance outfitters SS water bottle hanger, Self-reliance outfitters SS folding handle cup lid, PryoPac Gel fuel in Self-reliance 4”x10” water bottle carrier – Additional carry for water and acts as cook kit. Transport empty and fill upon arrival. Empty before returning.
http://www.kleankanteen.com/products/wide/klean-kanteen-40oz-wide.php
http://www.gsioutdoors.com/products/pdp/glacier_stainless_bottle_cuppot/tableware/
http://www.canteenshop.com/cooking.html Olicamp mug 1/3 of the way down
http://www.thepathfinderstore.com/stainless-steel-bottle-stove/
http://www.thepathfinderstore.com/bottle-hangers-1/
http://www.thepathfinderstore.com/stainless-steel-cup-lid/
http://www.campingsurvival.com/pyinhegel4pa.html
http://www.survivalresources.com/Products/Misc_Containers.html 2oz screw top tin 1/3 of the way down
http://www.thepathfinderstore.com/pathfinder-h2o-bottle-bag/
Food bag w/jerky, GORP, Millennium Ration bars, salt, bouillon cubes, & coffee/tea/hot chocolate packets. The more the better, keeping things within practical weight and space limits.
OKC-3S bayonet/fighting knife/utility knife (Just a good field knife)
Amazon.com : Ontario 6504 OKC3S Marine Bayonet (Brown) : Ontario Marine Knife : Sports & Outdoors
Leatherman Surge multi-tool – For general usage
http://www.leatherman.com/product/Surge
Victorinox Rucksack Swiss Army Knife – For general usage & back up to Surge
http://www.swissknifeshop.com/swiss-army-rucksack
300’ 550 cord – can’t have too much cordage
http://www.omahas.com/product_info.php?products_id=455
MSR - GroundHog Stakes - one or more 8 Pack for setting up survival tent and tangle foots for security.
Amazon.com: MSR GroundHog Stake Kit: Sports & Outdoors
Emergency Zone Brand HeatStore Reflective Survival Tent
Amazon.com: Emergency Zone Brand HeatStore Reflective Survival Tent: Sports & Outdoors
SOL Escape Bivvy TACTICAL Breathable Survival Sleeping Bag - Olive Drab Best/lightest/smallest practical bag.
Amazon.com : SOL Escape Bivvy TACTICAL Breathable Survival Sleeping Bag - Olive Drab : Emergency Camping Blankets : Sports & Outdoors
Personal survival kit (commercial or assembled)(space blanket, whistle, signal mirror, fire tinder, fire starter, poncho, pocket knife minimum)
Adventure Medical Kits Hiker first aid kit
Hygiene kit (campers soap, towel, toilet paper, etc.)
Packet of important papers (IDs, insurance, etc.)
EDC: Smartphone loaded with prep apps, Limeade 13,000mAh power pack w/mini-B USB charger port for smartphone, Maglite Solitaire LED flashlight, Redi-edge knife sharpener, whistle, medications, 2 bandannas, cache tube w/spare AAA battery, write in the rain notebook, 2 Fisher Space pens, self-winding watch. In addition to the regular wallet carry a micro wallet w/lots of cash for emergencies, separate credit card for emergencies, separate debit card for emergencies, duplicate ID. A money belt with the same is also a good idea.
Just my opinion.