Going to put a strictly audio system back together, trying to use what I have in storage.

The PL518 table would still have whatever cartridge and stylus came with it when I bought it 20 - 25 years ago. How can you tell if it needs replaced (cartridge and/or stylus)? Also, since there are no shops within 100 miles, I'm guessing, it looks like any replacement and setup would be on me; for no talent or skills, is this more than I want to tackle? Looks like the cartridge is held by 2 screws thru the shell, but those screws are in slots so where the cartridge mounts along those slots must be an issue? Also, anti-skating and tracking seem to be terms I remember from the past?

The receiver has a multiple selection phono cartrige switch for either mm or mc, what would the PL518 have come with? And if I have to replace, is there upgrades available, or is it all just subjective?

Also, I'm certain my LP's are dusty, filthy messes. They've been stored vertically on end in tight cardboard boxes, so I think warpage won't be a factor. Anyone use a cleaning machine? Seen the Nitty Gritty and VIP(??) pieces but they're as much as my table and receiver put together; assume they're superior to a spray/brush like the old discwasher D4?

Thanks for any help my way.