One thing I know is to not use the plastic or poly-whatchamacalit tanks. A fella I know locally used one of those to put his under the bed and he was not happy with it. He said when it was full in the summer it would get hot and kinda droop over the mounts like.
If he had it to do over, he said he would have used a metal tank.
A lot of people use some model of old chevy blazer tank, apparently it fits between the frame rails.
The challenge with putting the tank under the bed will be... where do I put the filler neck? There will be some modifications done there.
I'll try to root up some more information this weekend, if I can find it.
-W
