Pictures!
First, the new seats. These are the Recaro Specialists M. Eric made new mounts to mount them as low as possible. I can definitely feel a difference in the height to my head/headliner. These don't quite have as much bolstering as the Sparcos did, but they are very comfortable for me.
The driver's side mounting plate:
The clearance to the side where the adjuster is. Plenty of room:
Clearance to the harness bar:
Folded up.