Oh my lord, I removed the right angle fittings that are for the video card. Could that have caused the issue? I can't fill is up now because of the leak but can you tell which chamber shouldn't be plugged? If not, I can tray to duct tape and fill the plate.
Lol. Yes. I would almost guarantee that caused your initial issues.
That distro looks like a pure series, so it pumps from the distros reservoir, to the cpu ports, then to the gpu ports, then up the left channel to the rad. You cannot cut off any of those sections only bypass them.
If you didn't toss them, I would assume the kit had all the parts needed. Otherwise, its just the two 90s and a short piece of hard tubing. If you have two straight fittings and are adventurous you could try heating some tubing and making a loop.
For all practical purposes you were trying to pump fluid to nowhere.
Throw that connection back on and try again. When you first fill, you should see a generally level line of fluid across all the ports, once they bubble out.
Don't sweat it, chock it up to lessons learned.