Your profile reads like mine. Just built my home. I'm 6'3". Love the truck build idea. Wondering...you said when you looked at the rig originally, the FFR guy said they were redesigning something to make the fit for taller people better when you went to the factory before buying. Now you say you want to extend the cab, is that necessary?
Do you need a welding setup to build this? What tools are required?
I live in Chicago, built my house, have a three car garage (with two cars in it). Can I build this in that space? I'm thinking it would require two car bays, one for building, and one for parts.