I started working on the floor pan today, so I could be sure about the engine clearance. The resin floor pan was really designed for a curbside model and wasn't completely accurate, not to mention very thick. I thought that it would be better to start over.
Here is a picture of the real thing:
Here is the resin floor pan compared to the start of the new floor pan.
I added some bracing to the underside.
The front of the floor pan needed to be angled up as well.
And believe it or not, the engine clears!!!