DaveH
Striker
That is similar to what I built for my son. We had the 5600G rather than the X, which has a built-in GPU and didn't have the liquid cooling or the RC6600 GPU. We built for £585.I would suggest looking at the prices of parts in isolation from Amazon and overclockers etc then you will have your answer.
The system itself is mid to lower tier performance wise but would still do the job. The 5600x doesn’t have many cores, but is great for gaming as long as you are not multitasking (streaming/recording). The 6600 xt can still probably push 100+ fps at 1080p gaming and maybe 80+ fps at 2040p on many popular titles.
Another consideration is at 500 gb you might be lacking storage depending on how many games you install.
Unfortunately PC’s have gone up in price. Especially graphics cards. It depends what you expect from the machine at that price point too. Good luck!
The GPU is on Scan for £394, so my rough guess is you could build that for £200-300 less than what Falcon are charging.