Technics 1200/1210’s are great for DJ’ing as they have incredible torque and the ability to spin up to speed very fast due to the Direct Drive motor which has decent wow and flutter, this means they hold a very stable speed which is essential for beatmatching, also variable pitch control of +8/-8 for purposes of beatmatching, s-bend tone arm to allow for clearance to enable manual adjustment of the platter whether that be for pitch or scratching purposes.
However all those things that make it a great DJ turntable and i’ve used them since 1990(ish) conversely do not make it a great listening experience turntable as the dd motor imparts noise, variable pitch control on a pure listening turntable? – no thanks, s-bend tone arm? – not rigid enough.
A turntable should consist of 4 parts, platter with a separate motor driving it, tone arm and cartridge.
Anything else will be a compromise.
EDIT : The project above is freestanding, sit it on a big paving slab and use isolation pods under it.