My suggestion if wanting to tip ones toes into Japanese DD Vintage is to have as the first venture a Aurex SR 520.
I own Three of these and a Spare Motor Stator / Platter Spindle Bearing to be used to produce Variant Kaneta designn to compare to a recently produced Variant Kaneta design.
I've listened to noise on here in the past about the suggestion of the Aurex TT.
They are to be found for very very fair monies, have a substantial casting as a Stator Bowl and Stators that are huge winding compared to some other owned Japanese Vintage DD TT's.
Improving the Plinth they can be supplied with is very easy.
A alternate Plinth leaves numerous options on a Tonearm.
I would suggest a Replinthed Model with a Tonearm and Cartridge can be in use with a System already with a Phonostage for near $500.
A Very experienced TT user with an extensive collection and access to a Analogue Source, has compared the Aurex very very favourably to a DDTT from a similar era, that acquires a substantial asking price.