How about an old car battery for power.. when you see voltage drop below 12.0 on startup then put it on a trickle charger, or let it ride back in the truck for a while.. I have run this setup for an entire winter using my camper's battery, and was surprised how few times I actually needed to charge it.
As for antenna, a few of us here have the Arrow J-Pole, and for a 2m base I'm not sure how you could go wrong with that. http://www.arrowantennas.com/osj/j-pole.html
hard to deny $40 too. but that's not going to get you into other bands, just 2m and 440, but you can break it down and take it camping.