got it. now i need a mast. may use the one from my 18 prindle .it should work.(same length) anyone need 18p hulls. bottoms are perfect and original gelcoat white.
I have a SC17 mast in Norfolk, VA. The Supercat masts are pretty specific for the boats because they are HUGE and have a ton of volume. The righting system depends on the the volume to keep them from going turtle. It will be difficult to adapt a mast base to the Prindle mast to get the mast to rotate or even sit properly on the ball. You migh tbe better off figuring out how to machine the ball smaller and using a newer style Nacra base if you can't get a Supercat mast.
I'll sell my mast for $250--it has some pretty good scratches on it, but it is straight. I think it is missing the base.
You shoudl see MY back yard. Not too many boats, but I have like 15 masts hanging from my fence and another 20 booms. I have 22 Hobie 16 rudders on my deck!