I have a 1988 LP12. Ekos arm, Cirkus, Lingo 1, Trampoline 2, Lyra Kleos. Maintained it myself all these years with zero problems.
Took it to "Ovature Audio" in Ann Arbor MI. "Tom a longtime Linn setup guy" Drianed the oil, inspected the bearing, replaced with fresh oil, replaced the after market mat with a new felt mat, new Linn cable, new hinges,
said not to use the SOTA clamp any more and installed a new Lyra Kleos. Tuned it in the Linn manner.
Even though I never had a problem; when I got it home, it "Played the Tune" like it hadn't in years. I put it on the original lightweight Target stand that I bought with it and footfall problems disappeared.
I have a new Kuzma Stabi S with platter upgrade, power supply upgrade, 12" VTA arm , Dynavector XX2 mkII next to the LP12. Both ply at a high level with subtle differences but one does not outshine the other.
I am contemplating the Kore and Radikal. Yes, they are spendy. Also considering a Technics GAE modded with a 12" Triplanar arm.
Thinking about my retirement TT but after a tuneup by a Linn master; I would Not give it up. Just keep it in the collection.
Best Wishes