As I've bored you guys previously, did the following -
Fractal design R5
ASRock X570 Steel Legend
Samsung 970 EVO 500GB M.2
Gigabyte GeForce GTX1660 Super
Corsair Vengeance LPX 16GB 3600 Memory
Corsair RM750 PSU
The R5 has space for 8xHDD's plus 2xSSD's plus 2x5.25"
The mobo seemed to have more SATA ports than most - 8 vs 6.
Bout 4 -4.5 times as fast as my old i5-4570 in Handbrake.
Prices of the above do tend to add up though...