Based on what a few posters are asking for 250x2 Sunfires and Carver 760x this seems like a very good price, even with a few nicks. I don't expect it to last long.
About the lowest I've seen for a 300x2. (I'm sure someone though can tell a story of how they got theirs for even less).
Sunfire Ultimate Receiver (thanks jjptkd!)
Sunfire Theater Grand Processor (with original remote!)
Klipsch Chorus II's
Legacy Studio's (circa 2003)
Sony CA70ES 5-disc changer
Sony SACD 5-disc changer