Go with 12' wide 10' high overhead doors, my buddy talked me into it and I'm glad he did. My PB is 40' x 60' x 12'. Propane furnace in shop with overhead fan and well insulated.
No lift here, but my shop floor is 5" thick with rebar 2' centers. My shop 33' x 22' has saw cuts to make 8 sections. Built in 2014 no cracks.