I'm the same way but I wanted to just start with the bay so I can get the drivetrain and whatnot back in. Then once it's running/driving I can worry about the outside of it.
I had the one from harbor freight for 5 or 6 years before 60mph winds took it out. Never let snow sit on it in the winter time so that might've helped things. https://www.harborfreight.com/10-ft-x-17-ft-portable-car-canopy-62860.html