I've always seen LP12's as a giant money pit with 'upgrades' that are actually 'fixes'. I have an all original Heybrook TT2 built in 1984 with an LVX tonearm. I've auditioned other tables at home with whatever cart I'm currently using (AT33PTG/II since Christmas) and in the end I end up keeping the Heybrook.
The last comparison was a Rega Planar 3 and Ania cart. After a month and a half they were gone.