Two CI Flyers for sale: 6'9" for $275 and 6'2" for $350.
The 6'9" was my first "shortboard". Only needed it for one summer before moving onto something more my size. I'm not the first owner of either of these despite the coincidence of my name on the 6'9". Great board if you're looking to learn to ride a shortboard or if you like a lot of foam. I only hung onto it because I was hoping my lady friend would get more into surfing and make the switch too. That's not happening so time to make room. Filled in the nose and a chip in the tail but otherwise in pretty good condition.
The 6'2" was bought as a backup board but I've never needed it and don't really have a place for it in my quiver anymore. I never rode this board but I bought it used. The guy I bought it from never seemed to ride it much either as there are only some small pressure dents as evidence of use. Excellent condition.
If you're looking to learn to shortboard, I'd suggest buying both for $600. The transition down in size should be pretty smooth considering it's the same shape. Both boards cost less than buying one new.