Where to buy quality phono connectors for chassis

Parts Connexion up in Canada has many nice RCAs. I really like the Cardas, but you have quite a few to choose from:

http://www.partsconnexion.com/conn_rca_main.html

Check also with Michael Percy Audio. He sells all the Cardas variants plus Vampire. Also, I bought some that are either made by Eichmann for their bullet plugs or are sanctioned for use with them; maybe from Percy or some other US source. It should be no problem to find high quality "female chassis mount RCA jacks". (That's what you are looking for.)

You can get gold plated from Radio Shack. At a reasonable price too.

I wouldn't hang my hat on "gold plating". It looks nice and won't oxidize, but it is not necessarily the best finish for sonics. It depends more on what major structural metal is under the very thin gold plate.