@chauncey
if you are wanting to be in the realm of state of the art tape playback, you should try to acquire a ’master recorder’ level deck. there are a number of decks at that level that are all capable of sounding great. any of the new decks brought to market recently do not play at that level.
these new decks play at the 'Prosumer' and 'Broadcast' level.....but not at the 'master recorder' level.
my recommendation would be to find a really good condition Ampex ATR-102. you need to talk to someone who is an expert about it. i would recommend reading this thread on What’s Best Forum about a change i just made from my Studer’s to a pair of ATR-102’s. that thread should answer many questions and provide contact info to a couple of guys who can help you. tape can be awesome.