Mmmmmm, I take it you are an old codger like me.......
The Linn issue is difficult, as a dealer through the peak of Linn mania, I am well aware of all the bull***** surounding the product but the reality is that the player could be difficult to set up correctly and would always drift out of alignment.
How quickly this happens is the issue, carefully and correctly done it would need re-setting every 18 months or so, acceptable i think but this would vary with useage and from player to player. These days setup expertise is rare, modern LP12's are more stable and less variable but in my view not as good sounding as the 'classic' late 80s / early 90's player.
I understand what you are saying about using an MC cartridge, but the Concept MC is an integrated solution that seems to work very well, the extra space and air made it well worth the extra when I heard it in comparison with the Concept MM.
In the case of the OP, space is an issue too, lovely to have the room but it does require a lot from the amp and speakers, in dynamic terms anyway. I think a lot of users would be shocked at the levels required to reproduce operatic voices, peak power admittedly but real nevertheless. I know my suggestion of 2050is does not fit easily with some but the high 92/93db/w sensitivity plays a big part in this.
Can you imaging the power require to drive a pair of Harbeths or ATCs, to the rquired levels without compression in such a situation?