thanks for the response. I live in Illinois, and the boat is still in Nebraska getting the trailer fixed up, so I am going by memory on some of the facts. I know it's at least 15 years old, because: the guy I bought it from was a neighbor of my father-in-law. He bought it at least 15 years ago from his boss after he found it in a warehouse- who knows how long it was sitting in there. Unfortunately, I don't think it was ever registered- it was just sailed on some local Nebraska lakes. I have to try to get that all cleared up somehow.
It has has a mainsail and a jib, but the jib was bought later. The mainsail does not have the hobie symbol- it has a sun icon with a number in the middle.
I am not sure what kind of cat to compare it to since I don't know how hold it is- It has a 3 part tramp that slides into tracks on the pontoons and on the front and rear tubes. (It doesn't ride above the pontoons like I have seen on newer Hobies). I don't remember seeing any ports.
It has two-part (upper and lower) fiberglass pontoons.
We did find some numbers besides what was on the rudders:
TM CFT 8242 75
Is there any way to check these numbers against anything? If so, that might also help with registration.
Thanks for your help- It's a weird situation, but worth the $200 I paid.