If you do decide to go the restoration route and find that you need a replacement tube or two, let me know. Along with my goofy old truck hobby, I have a goofy old tube amplifier hobby. Who knows, you might be able to get replacements locally, but I've got several crates of old tubes in the basement that I'd be happy to dig through for you.
Honda DOHC V-6 is to a Stovebolt
as a
Media-card MP3 player is to a Tube stereo
They both get the job done, but so much of the soul gets lost along the way.
Analog forever!