You can download the outfitter here and see all the different options. The new one doesn't seem to have list price though.Wow, Cool!
The idea is you take it to your dealer, you'd have to call places like Sweetwater probably to get the best price, but still might be cheaper to buy a set and then buy the add on's. If you go the custom route there's some good dealers that I'm sure we can all list. My set came from store in San Antonio Texas that has morphed into Jeff Ryder's which he does a lot of online business now (He's got some good prices on the Sonor AQ's right now on reverb