Ahhhh I see what you've done! I like that idea. Will be super tight so we'll definitely need to test a few configurations once we get our T1s.yes, it's on the radiator. port to 90 degree extension into 5mm extension into 90 degree extension into t block into low profile stop fitting, and then a low profile (16.6mm) compression coming out of the t block (all non-rotary). as previously mentioned- it's going to, at minimum, bulge the top panel on the t1, so the configuration is going to have to change long-term. i'm really going to be playing a game of millimeters in 3-4 different spots to make this short tubing run work though, so i'll wait until the t1 is in hand to make sure i'm not just burning more money on fittings for an idea that won't work.
in terms of the functionality t-block itself- it's probably not an ideal solution, but for what i wanted (being able to maintain the loop without dealing with the port on the cpu block) it's worked out about as expected. here's what it looked like when i popped the cap off after 2 weeks of normal use (this was filled to the threads prior)-