I just ordered a custom fridge kit from Ben, at Kegconnection. Super easy, and shipped pretty darn quick. Have you looked into using a Co2 manifold instead of a dual body regulator? Im not sure if you need one, but they do provide several kegs with CO2 at the same time. I saw that a vendor here, BirdmanBrewingCo, is selling them for a great price. Just checkout the Vendor Showcase forum.