i would mill the stock head rather than a cool head, and i wouldnt piss around with a degreee key, just get the plate. the way i see it your paying more for a key thats partly sheared and should be replaced
and enjoy it while you can, i used to dump every penny into racing my dirtbike, but as soon as i started to drive i had to decide what was more important because i couldnt afford to do both.
have fun, your bike will be sweet when its done :thumbsup: