CPU:
https://www.euro.com.pl/procesory/intel-procesor-intel-core-i5-11600k-3-9ghz-box.bhtml#opis

GPU:
https://www.euro.com.pl/karty-graficzne/msi-karta-graf-msi-rtx-3060ti-gz-tr-8g-lhr.bhtml

MB:
https://www.euro.com.pl/plyty-glowne/gigabyte-z590-d.bhtml#opis

CPU Fan:
https://www.euro.com.pl/chlodzenie-procesory/-ch-odz-cpu-noctua-nhu12s-redux-mult-soc.bhtml

RAM:
https://www.euro.com.pl/pamieci-ram/adata-pami-adata-xpg-gmx-d10-3200-2-8gb-ddr4.bhtml

Case:
https://www.euro.com.pl/obudowy-pc/silentiumpc-obudowa-pc-sil-pc-vent-vt4vevo-tgargb-wh.bhtml

PSU:
https://www.euro.com.pl/zasilacze-do-komputerow-pc/corsair-zasilacz-corsair-cx750f-rgb-white-750-w.bhtml

Boot Drive:
https://www.euro.com.pl/dyski-wewnetrzne-ssd/samsung-dysk-ssd-samsung-980-pcle-3-0-nvme-500gb.bhtml

Hard Drive:
https://www.euro.com.pl/dyski-twarde-wewnetrzne/seagate-barracuda-st2000dm008-sata3-3-5-2tb.bhtml

---------------------
Additional equipment:

12pin cable:
https://www.amazon.com/CORSAIR-12-Pin-Sleeved-Supply-Graphics/dp/B08S96RXQH

Flash Drive:
https://www.euro.com.pl/pendrive-pamieci-usb/goodram-ume3-32gb-usb-3-0-czarny.bhtml

Cost total:
6896 PLN
+-30 USD