Looking to build a 40x64x16 pole barn. 2 16'x 14' insulated overhead doors on the 64' side, man door, Steel roof and siding, foam closure strips, double bubble roof condensation barrier, ridge vent, 5" concrete with glass, gable vent and gable fan, 12" overhang all around, 1 man door, two floor drains, one sink drain, water line to hydrant, laminated 2x6 times 3 laminated posts, and the siding material that lets light thru at the top of the steel siding on the south side(maybe). Then there's steel pre-fab and insulated which is enticing to where I could do it. Looking for build material or build in general, suggestions or what to stay away from. General purpose garage/storage/ shop use. I'll wire it and maybe insulate it but i'd kinda rather they insulated it. Need some bracing somewhere to hoist stuff up.