Recently purchased'70 Chevy C-30 1 ton cab/chassis w/Franklin motorhome on frame,cutout between buckets... Boby and frame good, 350/turbo400,seem good,motorhome ok, just did 1400 mi trip. Interested in replacing present motorhome w/toterhome or the like, 11-16' or so, is it feasable. Combine old w/new.