I have a pair of brand new Kirkey 41900 Aluminum racing seats. Brand new, only pulled out of the box for fitment. They run $160 each from Summit. This is the seat on summit's site...
http://www.summitracing.com/parts/KIR-41900/
Going a different direction. I'll take $240 for the pair of them. No covers included. Located in Verona, KY.