That is absolutely the worst way to build a pc. While you are waiting to buy the next component the warranty on the ones you already have is wasting away plus if anything is DOA you would be outside the 14 day no quibble return window and would have to do a RMA which could potentially take weeks.
Your parts above need some tweaks. You don't need a £144 AIO to cool a 14600KF. A £35 Thermalright Phantom Spirit PS120 SE (available elsewhere) would be more than enough for it. Even if you stuck with a AIO don't go with Corsairs overpriced offerings. Look at the
Arctic Liquid Freezer III ARGB 240mm at less than half the price instead. It's on pre-order here but there are plenty of other retailers.
The memory is slow and has poor timings. Aim for 6000Mhz with C30 timings, something like the
32Gb Teamgroup Deltas RGB 6000Mhz C30 kit would be ideal. Again, it's on pre-order here but there are other retailers.
The psu is still massive overkill unless you are going to put a RTX4090 in the pc. Something like the
MSI Mag A850L 850W ATX 3.0 psu at just under £120 would be more than enough yet still have extra headroom for future upgrades. Yet again it's on pre-order here.
Personally though I would avoid Intel as it's a dead socket. For a new pc AMD's AM5 is where you should be looking as the socket is going to get at least another two generations of Like I said previously, its bin a long time since I built a PC
