Of course we don't know your garage story, but maybe you could what Glen, the host of this site did, cut a hole in the garage wall and stick the front end in the patio on the otherside. Or crossways in a two car garage, or share a bigger shop with one or two buddies.
Or you can do what what my partner did that owns the chassis, he built a doghouse deal to extend the shop/garage when we front halfed the car and went from 200'' to 225". The fold-down one piece door just closes over the dog house. It's about 3 feet long. I'll take photos if you are interested. Just be creative about your shop.
I know of a 180" Cen Pen car not finished for sale for under $4k, just needs body, fuel tank, and plumbing and wiring, and an engine trans of course.
Jon Hansen