How good is this pc?

Its within my budget so either I want to buy this or make one myself
here is prebuild https://www.mediaexpert.pl/komputery-i-tablety/komputery-pc/komputery-stacjonarne/komputer-mad-dog-geforce-rtx5070-dlss-4-reflex-edition-2-endorfy500argb-a34wr32wh-r5-9600x-32gb-ram-1tb-ssd-wi-fi-window

Here is what i made https://pcpartpicker.com/list/RzjQ3w

I dont know which one is better can someone tell me?