Well, I went ahead and got it. Slightly disappointing--all the stuff is old and filthy, which means cleaning and I am allergic to cleaning. There was also no heater, and the stand was a little bit junky. And the cover is broken (fixable, though). Still, it was worth it, and it'll make a good QT tank or even, once it's cleaned up, replace one of the 10 gallons (which would then be the QT).
Oh, and I got a betta bowl (yeah, I know bowls are cruel, but all of my friends like bringing me rescue bettas I think they steal from Walmart, and I'm running low on space) at a garage sale for a quarter. Kick-butt.