These are Slingerland era Leedys. Basically a Slingerland with better looking lugs IMO!
http://longisland.craigslist.org/msg/3743207007.html
They are listed on the DFO site for $550 plus shipping. Not sure if you're a member there but if not it's www.drumforum.org
That's an excellent deal on a cool kit. If I had the space I'd buy them!