now if you could work out a jointed bi-frame folding tunnel connected tracking quad axle 50' wheeled home at 8' wide with pull-outs and hot tub.... I'd be right there behind you to finance that endeavor....(unfortunately the only company that can do this for us is in Italy and 2 years out on custom orders).

I was with you all the way on this build until you started using narrow gauge brads. Over time,with sheer and vibration they will fail one by one but in the end, spectacularly. A ring shanked nail of appropriate length and extra wide head should have been used. They are more expensive and the guns to pneumatically insert them have have custom piston push rod heads made to accommodate them. (It's better to have a lot of a few hundred thousand made to order out of a galvanized steel and be sure you lube your gun often during use.) but if you want your product to reflect the amazing care you obviously have in building these (and want a reputation for quality). Also..anchor your roof and roofing. The lift aerodynamics of its directionality along with the cyclone force winds that it will regularly face during transport will create lift that could cause random shards of roofing, if not the entirety, to peel off and litter the highway. Good luck!