Need used nonworking chinagirl motor for project

I'm looking for a used nonworking china girl engine, no exhaust, no intake, just the main meat and potatoes so to speak. it can be cracked,have chipped fins, whatever as long as the piston still moves up and down. let me know what you got, and what it'll take to pry it away. Bottom line, I don't want to spend a lot of money for something thats going to become part of a prototype for something totally awesome. Donated parts are always welcome.