Had a load of fun with this. Thanks Kent!
I may've left some windows opened and bugs got in...
Yes, the turntable spin could've been smoother at higher frame rate or with more frames per rotation, but I didn't want to rack up my electricity bill too much.
times per frame @ 128 samples:
eevee - ~00:28:00s
cycles - ~02:30:00 (last image)
9900K, 2080, 64GB
Looks good :)