It's no secret a lot of high-end turntables are manufactured in China to custom specifications - and sold at horrific prices. Not saying prices are unreasonable, only beyond reach of a wider audience. However, critical turntable parts may appear on eBay from time to time and essentially we only need three things to reach into high-end turntables: The platter, bearing and motor. The rest is trivial, rubber belts, tonearms, cartridges, etc.
Magnetic levitation has been around for decades but few have done something about it until small neodymium ring magnets became available. As can be seen from the first photo, not much is needed to make 12 kgs floating in the air - almost. We still need a bushing to keep the platter stable horizontally, but the friction of the spindle + steel or ceramic ball against a thrust plate is gone. Wonder why not more common. Even the Döhmann Helix 1 turntable use a traditionally spindle on a ceramic ball. Arguments against magnetic levitation may be vertical movement, but this should be a matter of mass. Whatever, I took my chances and bought a 12 kg aluminum platter and a Jasmine motor and asked for an extra spindle so I could use flat belt or one/two round belts.
The Jasmine motor gets the platter going at 33 rpm in 3 sec. Nice! The flat belt supplied is interesting, being rather rigid, but needs a little help from time to time finding the middle of the pulley. I ended up using the twin round-belt pulley and use two rubber belt. Works without any problems and I take notice even the serious high-platters are driven this way. The newest trick is to use two rubber belts with different elasticity! Try it out.
A one-evening quick mockup plinth got me going and it kept me up all night, pulling out records that I previously thought so and so, but here came to life with a significantly reduced noise floor compared to my beloved Lenco decks. The difference is not subtle, not at all. Improvement all over the spectrum, from bass to the highest treble. The low noise floor is something that makes listening at low level much easier.
Later I made a new plinth as seen below, and it's probably not the final. Just gives ideas of what to change next time.
All in all, a significant step up the latter to aural nirvana.
Should this be of interest, search eBay for turntable platter and turntable motor.