I was in the same situation not too long ago. Be warned, vintage CD players are generally a waste of time. There's just so much that can go wrong, what with lasers and transports wearing out, nevermind that D/A converters get better and cheaper year over year.
I'd suggest a new-ish DAC; I bought mine used (Grant Fidelity TubeDAC-09) for just a bit more than your current budget--frankly the best single audio purchase I've ever made.