Jera, I picked up the 353A amp about 4-5 months ago and have recently gotten it back after a recap and updating. It sounds incredible. These are superbly built with beautiful, hefty, Peerless transformers. It uses 6L6GC output tubes and 12AX7's, both available and decently priced. I strongly encourage you to purchase the pair. I don't have experience with the tuner but am betting it's excellent. I'm using a Dynaco FM3 tuner and eventually will pair the 353A with a Scott 310E, when back from servicing.
Julian Hirsch reviewed this amp in a HiFi Stereo review from November 1961. He summed it up by saying "I would describe the Altec 353A as a rugged, well constructed, and honestly rated stereo amplifier, capable of delivering excellent performance in the highest-quality stereo or mono systems." For a man who was not gushy with words, I believe this was a two thumbs up review.
Where I live, Altec tube gear is never for sale. I'm not even going to comment on price. Instead, I will repeat myself, which at my age happens a lot. I strongly encourage you to pick these up. PM me with any further help needed. I saved some online info including the review, I can forward if wanted. Good luck and keep us updated. Pics are always nice.
TS