I didn't read the back story and I'm no expert in porting but I don't believe high compression and large displacement are any guarantee of bottom end grunt.You can tell all that from those little pictures even without a side by side shot of a stock port? You're afuckingmazing, or dense that you think a 12:1 1327 is going to suffer from a lack of bottom end.
Right on OP/builder dude. I wouldn't have put a sidewinder on it but I understand selection's limited for available pipes.
I don't remember which GSXR wheels go in the stock swingarm easily. You'll want to do that at some point. GS Resources is probably your friend there.
Post back when you dyno it.