There's a lot to like about it, appears to have some decent parts on it. 4 into 1 exhaust, decent tank/rear cowl, the tank sides were dished in, drilled rotors?, clip ons.
Who built it, and did they do anything to the engine? Were they any good at it?
It's tough to put a value on that - you might get a few grand on eBay if the buyer doesn't back out.