So i didn't calculate all this but whatever here it is:
CPU: Intel Core i7 8700K
MoBo: Any Z370 with reasonably big radiators, at least 4 SATA ports, 4 RAM slots
RAM: 2x8GB, any manufacturer, at least 3000MHz with CL16 (could look for 15 or 14) with radiators on it
GPU: RTX 2060 Super or 2070 whichever will fit in your budget
SSD: If you want an hdd too then take a 480GB model, but if you don't want one then take a 960GB, BUT leave the M.2 slot open because those are still expensive and prices are still falling
PSU: Here are some manufacturers I can recommend: Corsair(but they overprice everything), Chieftec, Deepcool, Cougar, EVGA(best ones), be quiet!, (if you run a tight budget and read this FSP is a good manufacturer to choose, it's cheap and safe), take a 650-700W power supply with room for upgrade, semi modular or even fully modular if possible, active PFC
Case: Personal choice, but it needs to have the PSU one the lower side to have better airflow
CPU FAN: A 120-150W Deepcool Fan is going to be a good choice
Fans: 3 120mm fans 1 on the back and 2 on the top
P.S.: Tell me if I forgot anything