For some reason the seller only puts one up for auction at a time and only sells on eBay. These are the most complete kits I've ever encountered. No personal BTDT, I have no idea if they contain the correct parts or if they're any good or not.
I got the kit from Randakk's Cycle Shack; without the book he offers, it was around $90 and included every o-ring and gasket, new rubber plugs, accelerator pump diaphragm, air cut-off valve diaphragms, and new screws for the float bowls. I am extremely pleased with the quality of the kit and the service I received.