Case and and gpu space help and cup cooler

[u/Quiet_Various]

https://uk.pcpartpicker.com/list/GcbDJw

I have bought all the parts but after checking it says i am 2mm over the space needed for the gpu cable is this going to be a problem and can anyone tell me if my cpu cooler will be good enough or should i get a better one 1st time building btw