ok, here's an update....
Decided to go the police report/no insurance route. Motorcycle rider has no motorcycle insurance (not required in WA), so I either file uninsured or take cash. He agreed to meet me @ my house, showed up in a high-end mercedes, had a $500 check and a full-scope liability waiver - included that it was his fault, I have no responsibility, his $500 is to cover deposit on repair, does not waive my right to non-collision repair, etc.
He had no insurance...that is the key - either he gets screwed or he pays full up front. I'm pretty comfortable now, he's been up front, has all the paperwork, is paying cash. I can try and screw him, or I can trust that he's on the up-and-up and hope that karma has treated me right today.
Oh, yeah, and I'm gonna repair the damage myself ($290.70 in parts) and pocket the rest. I saved him the insurance issues, he saved me the labor - a good deal all around.
ok, blast away (RYD and others

)