frogfarmer,
Welcome to Stovebolt.com.
I have two 1954 Chevrolet 3100s, and I had a beautiful/restored 1954/55 GMC COE 2-ton flatbed.
My garage is 32' x 40', with a high roof for a big storage loft (over 2/3 of the floor, 10' above two bays).
The one "bay" with no floor above it (and a high door) used to have a lift, but that lift is now gone.
My COE is also now gone from the high bay/door - I needed space for work benches and equipment.
So, I strongly support the advice given in the posts above - make it bigger, or make it easily expandable (if you have the funds).