I’m starting to dig in and turn things on and see what functions as is and what needs some work.If any of the components have not been powered up in several years, and certainly if they have not been powered up in a decade or two, they should absolutely not be simply plugged in and turned on. The AC voltage that is initially supplied to them should be brought up slowly, over a period of perhaps 8 hours or so, using a Variac or other device that can provide variable AC voltage and that has an adequate current rating. That would allow electrolytic capacitors to "re-form" gradually, reducing the likelihood that you would be greeted with a lot of hum when you try to put the component to use. It would also reduce the likelihood of secondary damage occurring as a result of an existing defect, especially if you periodically check for signs of anything overheating as the voltage is brought up. Things to look for would include electrolytic capacitors or transformers that get hot, and power tubes whose plates glow red.
Also, as a general rule tube power amplifiers, tube integrated amplifiers, and tube receivers should not be operated without a speaker or equivalent load being connected, especially if the component is processing a signal.
Regarding your original question, many excellent comments have been provided above. While I’m familiar with just some of the components you’ve listed, I would particularly second Effischer’s singling out of the MC60 amplifiers and the MR71 tuner, which I know to be excellent performers if in top condition and/or well restored. And I and many others here can vouch for the vintage Grace cartridges he mentioned.
Good luck as you proceed. Regards,
-- Al