New Build for €600 Already have GPU/PSU

Hi i currently have a msi gamingX gtx1660Ti and corsair CX550M that i picked up a few weeks back. Stuck them in a 2nd gen i5 until i got more money for the rest.

I now have the money to finish it. I picked a few bits on amazon and want to know if i'm forgetting/missing anything..

CPU;
https://www.amazon.co.uk/gp/product/B07STGGQ18/ref=ox_sc_act_title_2?smid=A3P5ROKL5A1OLE&psc=1

CPU Cooler;
https://www.amazon.co.uk/gp/product/B07H9HJLG5/ref=ox_sc_act_title_3?smid=A3P5ROKL5A1OLE&psc=1

RAM;
https://www.amazon.co.uk/gp/product/B0143UM4TC/ref=ox_sc_act_title_4?smid=A3P5ROKL5A1OLE&psc=1

MB;
https://www.amazon.co.uk/gp/product/B07V9L4RT6/ref=ox_sc_act_title_5?smid=A3P5ROKL5A1OLE&psc=1

Case;
https://www.amazon.co.uk/gp/product/B07BH23K53/ref=ox_sc_act_title_6?smid=A3P5ROKL5A1OLE&psc=1

This comes in at GBP434.13 / €533.73 from amazon.

The parts I already have are;
GPU 1660TI GamingX;
https://www.amazon.co.uk/MSI-Nvidia-GTX1660Ti-Gaming-Fan/dp/B07NW97P21/ref=sr_1_1?keywords=msi+1660ti&qid=1576160655&s=computers&sr=1-1

PSU CX550M;
https://www.amazon.co.uk/Corsair-CP-9020102-UK-CX550M-Bronze-Certified/dp/B01C3FFLZ8/ref=sr_1_1?keywords=corsair+cx550m&qid=1576160691&s=computers&sr=1-1

SSD 500GB;
https://www.amazon.co.uk/Samsung-MZ-76E500B-EU-Solid-State/dp/B078WQT6S6/ref=sr_1_3?crid=1VZM5I1WWDWE7&keywords=samsung+860+evo+500gb&qid=1576160736&s=computers&sprefix=samsung+860+evo+%2Ccomputers%2C162&sr=1-3

I'll be using this system to game on 1440p/60hz.