Damn, this is what happens when i start thinking, now i am contemplating just getting standart 750 pistons and rings and just having the cylinders bored, then just get the head ported and a valve job, my thinking behind this is, and correct me if i am wrong the 750 was pretty powerfull to begin with, so unless i have something to prove why do i need the 836. And from what i have been readin, by porting the head the engine wakes right up and will probably be plenty fast for me. Also it will save me a little bit of money that i can spend on the bike somewhere else. I dont know what i should do now, please someone give me direction on this. 
While your thoughts here are valid, 754 is right if you're buying a bore job and pistons, stock (even slight oversize stock) probably costs the same as an 836.
If you could just hone your cylinders, use the existing pistons and new rings, you'd save the money you're seeking. Your machinist can tell you if your pistons are still in tolerance to use again. Then I would suggest rerouting that $$ to suspension upgrades. Proper swingarm fitment, good shocks, tires, a little fork work, emulators and springs, brake pads. I am in my older ages, big on suspension, brake upgrades over ultimate power. Anything over 60HP or so makes a very pleasant ride and you're there.
