Clois...
Well after no small amount of messing about, I finally went with option C, which is to transfer the title over directly, using the wacky NY VIN tag. Once that's done and settled, I'll then go back and see what I can do about changing it back to the chassis VIN number, but initially no one wanted to get involved.
It currently has a valid tag on it - although the tag office (Central Park @ 81st and Elm) transposed the names and so I got my first OK title with the SELLER'S name on it.

What can you do but laugh it off, right? I contacted them and they're fixing it.
Thanks for your cell number. Next time I'm in town with the car, would love to get together for your evaluation. Or a slurpee...

Thanks again...
Rick