Selling Dead Scooters: How much?

I want to get rid of two scooters, one a 125cc four-stroke, and the other a 100cc two-stroke. The guy I’m selling them to fixes them up, or uses them for parts. The 100cc has papers, the the 125cc doesn’t–it’s mine, legally, but I can’t find them. So, how much? :s

Thanks.

Well, you get something like NT$400 from the government if you baofei a dead scooter, so I guess you can figure it out from there.
Probably a couple of thousand each, depending on how badly the bloke needs the parts.

You have to haggle.