Dano959 -
Love that Columbia look, and Alliance parts has some incredible chrome exterior accessories that dress that rig up real nice. Visited the Renegade factory back when they where still in there smaller facility and was impressed with the 5/8" FRP walls they use. The only thing I never did check into was weight of these panels over traditional steel cage construction (Won't be a issue on a toter) and how well the panels hold together (roof to wall & wall to base) without having a welded structure behind them. And what I mean is how well do the screws that tie the edges together stay tight and secure.
I am hoping over time we get owners of all of the different mfg'ers in here to let us know the + & - of each unit.
Good luck in your search and keep us posted!
2003 28' Show Hauler Motorhome on a 1995 FL 120
www.showhauler.com