I own a contemporary Linn LP 12. The LP12 was and continues, with upgrades to be a great turntable. The setup difficulties have primarily been in the initial table set up… the sprung suspension. One of the cool things is with a few upgrades your table could be upgraded to a contemporary world class performing turntable. Unless you like detailed mechanical work… doesn’t sound like you do, would be better performed by a dealer.
Happinly my audio guy loves Linn and is a Master Linn certified technician. So, he set it up new. I think a cartridge set up is mostly like a cartridge set up on most tables.
So for me, I bought the turntable and plugged it into my phono stage and away I went… what support equipment do you have? I have heard the name set up transformer… don’t know what it is… and after nearly sixty years with turntables never needed one. You can see my setup under my ID.