Thats a really solid PC tbh.
Just rough estimates looking at US newegg prices:
cpu 250$
gpu 440$
ram 60$
MB 150$
PSU 50$
HDD 50$
cabinet 50$
cpu cooler 50$
That PC is atleast 1100$ to build yourself in the US (830 £).
And things cost abit more in EU than in the US, so your probably not loseing much just buying a pre assembled PC.
Seems like a good buy (if they where cheating you by large amounts, Id say so instead, but they arnt).







