I hadn't really considered a muffler shop. There is a custom exhaust shop in town that I stopped in to see during lunch. He said he'd be about $1200, including headers. That's a bit much for me, so he's out.
On the Summit site, I found a set of Hooker headers (4902HKR) for $219.95 (just black painted finish) and Flowmaster American Thunder exhaust set (17139) for $439.95. I think Flowmaster is probably a bit louder than ideal for me...but I think I'll be OK with it. So all told that's about $660, with free shipping. I looked around on ebay and didn't see much. What I saw was a little more.