Beautiful! It's a great combination of radiator sled and wood sculpture. Yours looks a lot safer than Saint Jimmy's. There's definite overkill in your cooling setup, despite AMD's temps. -Yeah, it's tough to keep them cool. As for the plumbing to go single rad: You could bore holes in the wood behind for pipes, and change the lines to the pump and radiator on top. It took 8 posts, but I finally saw some dust in your shop. That's NOT normal. Also, Welcome to BitTech. That's an impressive entry into the community.
Thank you guys! You are right, if I had planned to watercool the GPU in the first place this would have been the way to go...420 rad most likely big enough for both. The RTX6000 doesn't boil too much. But now its to late, I just don't want to tear everything apart. Going external was way easier. The 560 rad is surely overkill, but it was there, from a previous build. My woodworking shop is normally clean, unless I work. The dust kills my lungs. But I am sure you like the main shop...