Built by Kevin who now runs the Hot Ribs forum. It could be nearly 20 years old but they were good hulls in their day. Assuming the engine is okay looks a fair price. I would be taking that A frame off, plus cut down or remove the windscreen even before you start to tow it anywhere. Going to be a huge drag from that. I hope its a 2 wheel trailer with spare wheel and not a four wheel trailer in the photo.
Ribnet is best viewed on a computer of some sort