About to plunge back into analog

I finally have room in my system for a turntable, and I'm getting ready to pull my very old Harmon Kardon T65C out of storage and set it up. I believe that its still in reasonable shape (the platter spins at least), but it has an equally old Signet TK7-LCA cartridge on it with a well loved stylus. Can replacement styli for such a beast still be found? If not, does anyone have suggestions for a decent sounding, reasonably priced cartridge that will work with this table?

Thanks, Ken