i built one by taking three 2x4's cut just a little shorter than the chassis plates and i took one and nailed it onto another one, and i then i nailed the 3rd one to the middle one. then i took some 1/4 plywood and made some sides that were like 3 inches wide so they could run down the sides of the 2x4's a little. and it works awesome. gives you access to most of everything on the truck, wheels tires, tranny, shocks etc.. only thing you cant get to is the brakes, driveshafts etc.
i used to work in a lumberyard and on saturday's we could take the scrap chunks of plywood and crap home, and one day it was slow so i made myself an rc stand.
my savage is sitting on the downstairs coffee table with its shelf body on it doing a little baby flexing with the help of a coffee cup. haha.