Just figure out what you want to listen to and dump most of the money into one of the two or achieve lesser performance and have both. If you have unlimited funds, build two state of the art front ends.
very astute observation.
regarding turntables, you have rim drive, belt drive, and direct drive. They all have their strong points and inherent problems, but unless you are into megabuck tables that have overcome or mitigated the problems inherent to each, by far the best choice is rim drive of the Garrard 301 variety. There are others but that is the one you hear about most often. Not sure what information the previous poster thinks they are masking or how they are fatiguing. My experience is the polar opposite. They make music, it is marvelous.
The holy grail for many is a Commonwealth from Australia. Long discontinued but very desirable. I have one coming in the next few weeks to probably replace my 301. My 301 has been updated including a heavy stainless steel platter and platter bearing which I think is essential, The stock Garrard platter has issues, but it is as old as I am (1955) and sounds superb.
Regarding the UHQR KOB there are many sealed and NM copies available on Discogs.com. I don’t know how much shipping to Australia increases the price but many are below what Acoustic Sounds asks for a new copy.
https://www.discogs.com/release/18884065-Miles-Davis-Kind-Of-Blue
https://www.discogs.com/sell/release/24373778
I don’t want to turn this into a debate on how to set up your table, but get some decent set up tools, protractors, etc, and some way to set azimuth other than by ear, too deep a subject for here but google it. If you have the funds and the patience, I’ve found Analog Magik to be indispensable.
good luck on your journey