Not sure if relevant anymore or if anyone cares, but posting this anyways.
I decided to get the Tarozzi rearsets, and they are pretty decent.
They come in 4 different types:
-Fixed, with rubber
-Fixed without rubber
-Foldable, with rubber
- Foldable, without rubber
Took me a lot longer to put them on then it should have. But I have to say they are very well made for the most part. My only issue is trying to position the actuator foot pieces that the linkages agreed with, always seemed either too deep or too high up, but with enough fiddling I managed to get the shift one in the perfect position. Brake one however, is a little more frustration to figure out. the current position i have it in prevents me from using all the brake down force I want before the linkage starts to run into itself. but not to a point to where the brake is useless. Also the shifting linkage is a little more direct than the stock 81 GPZ ones are, so shifting with it feels a little more direct with less movement while still feeling firm. Not sure if they just forgot it or I lost it somehow, but there was a missing counter nut for the shift linkage, luckily you can just pull one off the old linkage.
Ergonomics feel pretty good and race ready, assuming that's what you want when you buy rearsets. Positioned a fair amount more back and up. Takes a little ride or two to get used to them.
Was having a great time with them on a canyon run (that is until my ignition stopped working...)
In the pictures I dont have the passenger pegs on, but there is room for them on the new plate. However the hardware they supply you is way too long. Also in the picture I dont have the rear brake light spring on, (you have to stretch it out a fair amount before you put it on.)