Looking at one on craigslist and wondering if it's a good moped for my son? I plan on rebuilding the engine (ad says it runs), redo the carb, etc... with him while he waits for his 14th bday. Is it easy to get parts? Decent moped? I talked him down to $600, says it runs, is that a decent deal? I had a moped when I was a kid in the 80s and loved it. My dad and I did the same thing, rebuild, repairs, etc... So hoping he enjoys it as well. Thanks! (edited)