I did mine in a 20 by 24 with a covered 14 by 24 carport next door, seems like I spent 1/2 the time moving parts and things around. Stored painted and finished fenders and body parts in my rec room. In my next life, I'm going to build me one with enough room.
1953 Chevrolet 3100 261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done In the DITY Gallery Video of the 261 running
1964 GMC 1000 305 Big Block V6, sm420, the next cab off restoration