...now I have to step back and reconsider how much of what I have read is hyperbole.
I got the impression that Psychicanimal was being sarcastic about his isolated background.
Whatever the situation, fortunately, there are some reviews that compare KAB-modified Technics SL1200s with more expensive belt-drive rigs. Here's one from TNT-Audio where the reviewer compares a KAB-modified SL1200/Ortofon/Creek rig with a near twice-as-expensive Music Hall MMF-9/MH Maestro/Creek setup.
http://www.tnt-audio.com/sorgenti/technics_sl1200_2_e.html
Also, Ed Kobesky has written a lot about the SL 1200 and has had a wide array of turntables and cartridges, plus he reviews for Positive Feedback.