Here's a complete kit Corsair Hydro Series H115i RGB Platinum with all the hardwares included. It's been on my personal build for a couple of years, which worked flawlessly. Pairing this with the Corsair Commander Pro made controlling the AIO was very easy and gives you a live update of the temperatures. Everything still works, no blemishes, and you will need to supply yourself thermal paste when you mount it.
I am just amazed at how well it keeps the i7-10700K CPU cool even after setting all 8 cores to run a 5.1 Ghz and realizing the cpu is running at a higher voltage and a much higher wattage then a non K model would be. The ease of install and use of iCue is also a huge plus.