Look at a lot of boats, you'll find the right one
One thing you might want to consider when thinking of a sailboat budget is that you'll likely want to spend some money after you get her to upgrade certain things. If you have a total of $7k to spend, I'd be looking at something in the $5-6k range, thus leaving yourself some money for the inevitable repairs, upgrades, et cetera that are surely to be needed on any older boat. Another thing, as mentioned previously, is storage. Seeing as how you live in Florida, are you able to get a slip and keep her in the water, or will you be keeping her in storage when not in use? If she'll be stored when not in use, are you gonna keep her at the marina or somewhere else? I had to go through all of these questions when I bought my boat, and it ended-up that the best compromise for me was a Mac 26D. The retracting daggerboard and water ballast make it quite reasonable to trailor, you can find a good one for about $6k (got mine for 5, in real good shape, good selection of sails including a spinaker, 3 anchors and a bunch of rode, new batteries, new porta-head, a bunch of life jackets, etc. (his wife wanted the money real bad!)), and it had a lot more room than a previous Cat 22 that a former girlfriend and I had been sailing. True, the Macs are certainly not a 'bluewater' boat, but for goofing around in the bay, lake sailing and other 'mellow' sailing chores, she does just fine. And, the money I had left-over allowed me to put a new stereo and a bunch of other 'goodies' on her without doing serious damage to the 'ol Visa card! Also, the Mac is no slouch when it comes to racing, she can easily hold her own against boats the same size and sometimes even a bit bigger. Anyhow, just a suggestion!