Consider also “cheaper” used Technics SL1200MK6. MK6 was the latest of original SL1200 Technics lineup TTs, and it has much better tonearm and wiring.
Tonearm is the same, wiring is a bit better, but Cardas rewire kit for any old model cost only $50. An old Technics SL1200mkII and higher normally cost $300 minimum, and can be $500 easily. The interest supported by DJ community.
Any old Technics without serious upgrade can’t compete with
new mk7 and higher audiophile grade models
like GR and
G/GAE are ultra high-end compared to old models in this SL1200 series.
The brand new Technics MK7 is so cheap (often $800-1000) that it make no sense to buy any old model from SL1200 mk... series.
Regarding vintage Technics it’s better to look for SP series. This is very nice and
rare SP-20 assembled by me for a local friend. SP-10 mkII is better and more expensive.