Originally Posted by sizzler
You would have to know the GRVW, then strip everything out if there is anything, and get it weighed so you could consider out how much weight it is going to take to build the rig. The left over is your cargo capacity. As long as the truck is not over weight you are fine. Go to a truck stop to get the weights. Also be careful how you balance the load, such as water and gear, or storage. You can't have has much weight on the front as you can the rear. You will need to plan that out. But really it will not be that hard, as you are not adding tons of weight with the "RV" work you are doing. Just consider water tanks and if you are using batteries house power, plan where they go. Just good balance.
Also, would you be towing? More weight questions to figure out. A little research on line about GRVW will pay off before you buy something.
If I just go with a box truck I so t have to tow anything.. I want to take like a truck that penske or Ryder just rents out to anyone 24ft long.. Preferably with air breaks. People that rent out those trucks usually don't have cdls and overload them and are fine so I'm assuming I can do the same