GPZ Wheels on a 750E2?

Would love to replace the 18 x 2.15 rear with a 3.0" wide rear GPZ wheel. Anyone made this mod before? Disc spacing an issue?

I've only done it on a 650, and I used the ZX750A swing arm, brakes, etc.
I think Z1 Enterprises sells the adapters to weld on for twin shocks, I just cut the dog bone brackets off the bottom and welded them on top for dual shocks.

And then you'll have a cool aluminum swing arm