Was down at my upfitters today for some install stuff. We got to talking about the different flooring configurations, both for the wagon and the van.
The very first Transit he modified for handicapped features, is what he based his next 2 estimates on, and he lost money. He said the first one he thinks was called a Transit "Sport" model. It had 5 or 8 seats in it, but when they removed everything it had the seat brackets all the way back to the rear doors, even though it didn't come with that many seats. So he based his estimates on being able to move seats around towards the back.
Vehicle was bought of the lot, early on, from the largest dealer W of Mississippi and he thinks, now, it may have been some type of pre-production model (maybe like the one they did for American Pickers).
So the whole point of this response is, they did it before why not make all Transits with the same floor? Capable of using the whole interior for seats to be repositioned? He advised and I agree that it puts an unfair burden on owners that need modifications for the seating areas for lifts etc.
Would also be nice if they had an option like Sprinter did, for wiring harnesses etc already run to the rear, so equipment could be hooked up.