Nice find! I have always wanted a moped/scooter/commuter bike to travel to work with, but when I saw some of the prices and the MPG they got I just said it was more feasible to stick with the VX. Especially considering Minnesota's climate and the fact that I have passengers at unexpected times.
it depends on your state, most states require that you have at least a learners permit for a car, or a regular drivers lisence, some require nothing, I don't know of any states that require a motorcycle endorsement for mopeds or scooters with automatic transmissions and 50cc engines.
you can buy new name brand mopeds starting at $1,000 and of course used ones are never that much unless it's extreamly rare, but $300 for a good used moped that needs only minor work, usualy a tune up, is pretty commen, I bought a honda Elite-e scooter at the end of last summer for $150, that needed a battery and felt it was a fair price.
if you can't get parts for it, don't buy it, brands like Puch, and Tomos, and a few others that have been around you can get parts for, stuff made in China is not made to be repaired or mantained.