Dan A4-H2O build check, advice and tips(custom cables, coolers, etc)

I plan a build in the Dan A4-H2O. I want to get a 7800X3D and a 4070 Ti in there (probably a 4080 later) on an Asus B650E-I. I plan on air cooling it with the IS-55 by ID cooling in hopes of better idle/gaming noise than AIO because of pump noises. (I might just test both at some point) Especially since asetek pumps seem to suck, EKs pump pushes on the RAM and I cant find anything about deepcools LS520 pump block.

I plan on getting the Corsair SF750. The cables that come with it seem to be great but I'd also consider custom cables to reduce clutter and make building easier, but dont know what lengths I'd need and where to get them in Germany.

Anything else I'd need to look out for?