For $100 plus shipping, you can get a brand new Carter Weber DGS and adapter from Stovebolt. $10 more for an electric choke. They ship pretty fast. They also have more air cleaners that fit than the Holley Weber. Oh, and the throttle shafts rotate so they can be adapted easily.
http://www.stoveboltengineco.com/acartpro/product.asp?productid=97
http://www.stoveboltengineco.com/acartpro/product.asp?productid=91
http://www.stoveboltengineco.com/acartpro/product.asp?productid=97
http://www.stoveboltengineco.com/acartpro/product.asp?productid=91