That is a nicely designed top and frame --- definitely not CMC/FF supplied. I like how it mounts to the back cowl. There was a guy in MX selling folding tops (Rafael?) on ebay several years ago for like $500-600. I wonder if that is one of them.
(20+) aj motorsports | Facebook
If you can repair it I would as going back to the simple CMC style from VM will be costly - top, header bow, top bows, snaps would be about $1k.