I found this 1975 Vespa Rally 200 project on facebook marketplace. The seller is asking $1,000 and he said lowest he would go is $900. Call me crazy but I don't think it's worth more than $500 in the state it's in. He says all the parts are there to rebuild it but based on the pictures, the motor is in parts in a crate so that's questionable. Plus there's a lot of rust. See pictures for reference.
Let me know what you think!