I'm sort've creeped out like when that bizzare bitch in the grudge climbed all over. Yet, I would let that chick smash a burger sitting like that on my dong. (Granted she's legal)
I'm know nothing about the rear 450 master, but the a front 450 caliper will work, and the banshee rear master will power it just fine with a braided line.
That rules out the kicker gear as well.
How bout the wrist pins? Inner crank bearings? Journal area in the cases where the bearing sits, when they're worn, they tend to let the bearing spin? Gears on the trans shafts are all tight?