After 4 trips to the friendly NYS DMV, I have my 1953 registered! It was a little bit of a hassle, as every time I went back they wanted something different. I have it registered as a motorcycle, not what I really wanted, but, hey, beggars can't be choosers! I would have liked it to be registered as a class B moped, therefore no motorcycle license would have been required.
I needed insurance, bill of sale from previous owner, picture of engine or frame number, and documentation of weight.
Good luck to you other guys!
Rick