I've got a two-month-old Gibraltar 8607 flat based hi-hat I don't need. There's nothing wrong with it (although for sake of full disclosure, I'm not personally crazy about the feel) -- I'm just replacing it with a Remote Speedy Hat. Since you can find new ones in the low $70's, I think I'd ask $45 plus shipping. I don't have a picture of it handy, but it looks like any brand new one you can find pictured on the Internet. No marks, dents, or scratches. I think the original bar code label might even still be on it.
I've also got a WFL 1121 flat based hi-hat that's in pretty decent shape and complete other than the linkage connecting the pedal to the shaft. I found it buried in a pile of scrap stands and parts, and even with a linkage made from a wire hanger, I liked the feel. So I adopted it and I've been tinkering with a few possibilities to replace that linkage. I wouldn't ask for much, knowing it's going to a good home and won't be thrown away (again). If you're interested, let me know and I'll take some pics.