Lots of places to get one...many of the glass suppliers sell them and some pottery supply places too. The Glass Hive has a huge following here, they're members and have a payment plan, so that might make it easier.
http://www.theglasshive.com/BEADANNEALERS.html
I love their kilns but the controller is beyond my brain.
Keep an eye on the garage sale area here too. Once in awhile somebody sells one. Good luck!