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First off, I'm in Las Vegas too, email me offline and maybe we can get together sometime.
Secondly, there are a couple possible sources in town that may be able to help. Jack Eliano at Electra Print builds tube amps and makes some excellent transformers. He may be able to help or at least point you in the right direction. Another source could be Anthony Padilla at Aberdeen Components.
Out of the area I'd give Brooks Berdan in Monrovia, CA a call. Yeah they're 3+ hours away but they have an in store tech department, sell high end tube gear, and have a great reputation.