I still feel the same about my recommendation of Revox B77 (or good "A" at a pinch). They're cheap now, consistent, reliable usually, spares and service is still ok I believe and so many records from the seventies were mastered or even recorded onto them. With an external mixer, the Pro 99 machines may be worth a look if they haven't been shagged to death professionally.

PLEASE avoid the Akai 4000DS and Sony TC377 type machines unless it's to collect.....

Other rare ones like the Revox A700 are silly money now, but to see a good one in operation, especially as the tension arms swung back and forth on play being selected (I never played with real pro machines sadly, so these little things please my little mind.....)