Adam I seen your post about using a GSXR swingarm, Here is a stock F arm that I added 10 inches to, a 180 tire fits fine. I have 3 bucks and about 2 hours into making it.
Well that works, and is my kind of solution to a need
I'm thinking the gsxr stuff will make a nice, neat, package providing it works out. My partner on this is all about it looking good and not just fast
He won't be saying that when he is polishing the cases
I'm a paint kind of guy myself.