Am I misunderstanding something...
How tall is your door hieght. Measure the door from the exterior bottom sill to the top jamb of the door. The width is always able to shrink, but the hieght will not meet any code if you go that route.
7'feet 6.5" is a tall door...does it have a transom window above it?
Am I missing something?
This will boost the price way up.