Made one from a 4x4, 2x4's and four casters. Set height at two foot high. Made long enough to roll cab on back to clean and paint bottom. Whole thing was less than $50 bucks. Works great. Sorry no pic.
1947 GMC Truck 5 window, Long Bed 2008 Corvette Roadster 2008 Harley Davidson FXDL 2011 F150 Ecoboost 4X4 2015 Subaru Outback AWD "only the strong survive"