I added expandable photos, dropped the price $100, and I'm giving it another go. Asinine offers to the tune of 50% below asking price have stressed my typically relaxed temper, and will be ignored from this point forward. I've seen half a dozen sets of headers/mids with more miles and in worse shape sell for more money since I posted these, and I can't help but laugh every time it happens.
I can't believe that I've seen three sets of these go for more money since posting mine.
Perhaps I should have lazily thrown up "Headers and mids for sale", then waded through the 300 questions about who made them and what they will fit.
Addressing common questions proactively appears to have been a mistake.