As much as I'd like to do a simple tent, during the winter our winds are too strong for it to withstand. If I build something with a roof, it will be...
If you're eventually going to cover it with drywall or T&G, I wouldn't go to the trouble of adding any additional layers of scrim paper or anything....
Just giving suggestions but there are also different (harder) waxes than carnuba and there are also different qualities and materials of wheels. All...