I hope you didn't tell the seller that he could sell the 'ped to someone in another State that doesn't require registration! (-;
I hope the previous owner can cough up a title. And I'm glad the guy is willing to hold it for you.
I went to the DMV about 5 times before they finally registered my moped. It was a supreme hassle, and I was ready to put my new 'ped up for sale because of it. And I don't understand why it costs the same to register a moped as it does a motorcycle. The good part is, you can park a moped like a bicycle (for free), but with a motorcycle, you have to park in a parking space, which isn't always free....
A few months ago I would have moved with you out of this State!!
Let us know what happens.