This topic has been covered before and it comes down to buying a used machine off eBay or having something fully restored by a qualified tape machine repair company.
If you are going to be playing master tapes my recommendation is purchase a machine and have it fully refurbished and calibrated before you ever see it.
This is a shop in New York that sells fully restored machines that I have purchased from and they can ship it to you.
https://www.funktionaltech.com/other-services-Steve