Ed, it's a PBS shifter. They are made in small batches and sometimes are very hard to come by. But they do shift very well, indeed. Not a single missed shift, buttery smooth.
I'm aware of where and how the originals had everything placed, but the shifter is placed PERFECTLY for my needs. And believe me, it was no picnic placing that e-brake and getting it to work without rubbing something! My e-brake tubes are both slightly to the passenger side from the center, lining up straight with the handle. It was a large PIA, but worth it. Function trumps original form on this one.
My seats are tilted up about 1.5" at the front, and sit on 3/8" spacers at the rear so my crotch belts can go through and under the seat, bolted to the floor behind the seat.