Have you looked at a Stiletto? There's a lot of the around, parts are pretty easy to get and they have a good class association for racing.
He's right, the Stilettos are easier to get. Even though they are not made anymore there were about 375 Stiletto 27's made along with the S-23 and S-30. There is one for sale here in the classifieds and you can also look at
http://stiletto.wildjibe.com and chek the "For Sale" section. Lots of support and good information too!
Good luck,
Clayton
S-27, H16