I bought a number of second hand ones thinking they'd work. None did. When eventually Lucas fixed it we had a discussion. He told me that only DIMs from the same WEEK are plug and play. Frankly, given his vast experience, I'd take that as gospel.
In terms of upgrading to chrome bezels, that's easy peasy. Simply take all the front off your non chrome one and swap it for a chromed version. It too me all of 10 mins and that included cleaning with cotton buds dipped in IPA (not the beer) all the dials and pointers. The newer one had a far less scratched too
