Dear @holmz : " a low bid for a DQX, which was declined..."
Looks like you really did not want to buy it and is at a bargain price. No, problem fine with me.
Now, I understand that your SOTA is not the Saphire model or at least you don't stated that way.
Anyway and obviously is up to you. I can't understand why you want to go for a TT:
"" which appears like it might be able to slide out and mount into a homemade base? ""
when today ( including SOTA. ) exist several TT/tonearms that can match your today needs and future LOMC cartridge.
Exist something that do'nt fulfill your way of thinking with today great TT/tonearms that impedes you go for it?
In the other side is weird that you don't make any comment in the most important and critical " partner " of any cartridge: the tonearm. You own the entry level of knife bearing SAEC tonearm and if I were you and before the TT I change that saec for a way better tonearm specially for the LOMC cartridges.
Any one of us is a unique human been with our exclusive way to " see " things and I respect your " see " of the analog world.
I think you already have all options any one can ask for and for me I think that the " ball " is in your " court ". Tha's me, maybe other audiophiles can tink that you need more information so go a head.
R.