Totally agree with what everyone else has said about the AGTs. Though you might want to point out, in an auction, that being PM her eyes aren't as neon as the Mattel dolls. As far as I can tell, that really is the only obvious difference with the AGTs, those green eyes.

Unless the AGT was retired, I would never buy one on ebay. I prefer new dolls anyway, but I could possibly be tempted to get an historical on ebay if she was PM and in very good condition, for a reasonable price.

Kailey, probably about 150-200, I'd guess closer to the 150, as you said she was naked, and her hair has been played with.