40 years not playing them because you think your system is not good enough, wow don’t know what to say. It’s not about the system, it’s about the music. If you love the music, play it on any turntable and enjoy.
No record is 100% perfect, you will get the odd clicks and pop, like Bob in St. Louis said put them through a record cleaner and see what comes out.
Someone is going to get a bargain, sorry to laugh but whenever I hear someone say “I recorded my record on first play and put it a way to preserve them” I just see someone that don’t know how to live.