Why don't you keep an eye on the weather, and come down to Heckscher this weekend... I'll be there Saturday, probably guys will be there any day with good wind. I know one guy who'll be selling a Nacra 5.2, which is about 17 ft long. It's neither especially stable nor unstable, and has dagger boards to pull up and down, so you'll have to be the judge of "easy to handle" He might be on the beach this weekend.
I'll let people know you've got a post up.
Just in passing, Rick's really cool about it, but I like to support our host anyway, meaning, stuff for sale or "wanted" I try to buy a classified ad. They actually work pretty well; I certainly got my 10$ worth. I do see that putting your notice up here also kinda plugs you in to local boats, it's a great idea.
Hope we see you this weekend, Jonathan!