The EK P360 will fit in with the push fittings, but you’ll need to put the fans on after. You will need to push the fans against the 8pin connects to get it screwed in and won’t be able to put a screw in the left corner one.
It is possible, not easy, but doable. Check my build last pic out.
That Matrix 7 has indeed caused nothing but challenges and a significant extra cost buying compatible parts!
Thank you for the response and advice, I was borderline pulling my hair out last night. Especially when I could see pictures of the rad up there online.
I'm absolutely furious with myself over this build! I had the exact same case in white but wanted the black. I had the gen 1 distro but wanted the new one, and hadn't given any thought as to what Matrix 7 could mean. As mentioned above I'd already sold them so felt I had no choice but to continue and probably spent over a grand as a result. Money I could have put to better use! Like going towards a 4090 perhaps. In Hindsight I could have returned the case and distro and gone in a different direction.Hindsight is always 20/20 though.
Ah well, as my dad would say there's no point crying over spilt milk. I've learned my lesson and won't be making that mistake ever again. I do think EK have been very naughty with this though, locking you into their ecosystem without fair warning.
That said I'm very impressed by the quality of their fittings etc. I particularly like the hex key being able to slot into the fittings to loosen or tighten them. Having delt with stuck fittings in the past this is a god send I'm sure. I also really like how what I've got done looks.