FWIW since you guys have me jonesing for a lift with this thread.......my ceiling over where the lift would be positioned is 108 at the front and 110 at the rear. T5 lights are 4" but the lift could be position to where the lights and door operator wouldn't interfere.
My '69's roof is 51-51.5"
DirectLift 8
Ramp height is 4.5"
Max lift height is 72.5
At max lift my car's roof would be at 128.5"
With a 4" cushion to the 108" ceiling the bottom of the ramps would be at approx. 44". Sitting comfortably on my Craftsman roller seat my head is at 50".
It's doable but not comfy like my friends garage.
The caster kit makes it look like it wouldn't be too hard to roll the lift outside if full height was needed.