I bought a set from Bill (the guy on ebay above). These are well made, easy to install, and they do what they are advertised to do. As I understand it, he followed the original design. Read somewhere that way when the car was being designed the originals were made at the request of John Delorean? John Z have you heard this?
The car was designed long before DeLorean showed up, but the Engineering Garage probably made up a set for him. We bought a DeTomaso Mangusta as a reference car during the early development program for the mid-engine Corvette, and he couldn't fit in it either - we spent a month moving the rear bulkhead rearward and modifying the seats for more legroom for him, and he drove it once.