Those look to be in a lot better shape than the ones I see for sale around these parts. Congrats. I think I'd be tempted to keep one and restore it. It'd sure haul a nice load to the BOL and they're pretty manuverable offroad.
How'd you get them home? I guess their auction setup is a lot more together than ours. I bought some surplus trailers and OMG is it ever a pain to get through the paperwork on them and get them licensed. Takes me about 2 months each time and multiple trips to the base. Usually takes at least a week and a couple trips to base just to get the paperwork allowing me to remove them.
Very very cool. I would make a gun truck out of the cargo, and mobile command & control / tactical operations center out of the maintenance truck. You got an excellent deal there.
I wouldn't sell either of them, you have spare parts for which ever one you want to keep running. If you have never driven an M35 series vehicle you should get with someone who has, there are some things that are unique to the operation of these beasts.