Where did you get your front disc conversion?

Aerospace Components list the kits "Starting at $635." What is the price of a SBP A body kit? Around $650 seems decent considering I'd have to drive about 60 miles to the junkyards and search though them looking for a donor, then pay probably $200-300 for the parts (So-Cal) if I were to get it from the junk yard. I'll probably be calling this place when I get back home, but want an idea of actual price so I can start planning