I toyed around a few years back with Malossi's discontinued 64cc kit for the av88 (which is a perfect fit for the av7) motor. I had a blast with it but I moved onto bigger and more pocketbook destructive ambitions in the form of the AV10 motor. Now I'm penniless and none of my mopeds run so it is time to clean out the garage to get some cash.
I did strip the exhaust threads on it but there are fixes for that now. Heck you could take it to a machine shop and have them fabricate up a flange mount. I had that done on a stripped 70cc Malossi av10 kit.
I'm not even sure what this is worth to some enterprising av7 tuner given the existence of other kits. But from what I've seen of the other kits this is by far the most well constructed (save that exhaust thread flaw).
If you are interested, please make me an offer via my email address in my profile.