Get a motor with a rip start; if you battery is dead then you have to try to jump it off your truck which could screw things up worse... too much current.
If the starter motor malfunctions you are really screwed.... last time I checked Sam's doesn't have a parts/repair department and it ain't open 24/7.
We had an ice storm ten years ago that put damn near all of Maine out of power for two weeks; a bunch of carper bagging swindlers (from down south) showed up in several locations with COLEMAN generators all marked "reconditioned" which they solD off the back of an 18 wheeler. FEW OF THEM WORKED AND THE SWINDLERS WERE LONG GONE!
Within hours all the LOCAL small engine shops were flooded with these units and they had no parts. Buy a Honda powere generator from a local guy who will properly service it and have parts in his shop and know how to make repairs.
I have been looking at the trifuel generators that have the honda engine. They cost about 1/3 or so more but give you more options such as natural gas if you have it available at your house. Then there is diesel and use waste vegetable oil .
Northern Tools carries a NorthStar Trifuel Generator — 13 HP, 6600 Watt with a Honda GX 390 OHV engine for $2149.99. Is this a good one? The gasoline model of the same one is $1299.99, would it be better to save the money by doing my own conversion?