You actually don’t need much for this. On the Eiswolf, you have to remove the pump unit from the cooler. To do this, first take off the black cover cap — it’s only glued on. Warm it up a bit with a hairdryer and then carefully pry it off from the side with a fine flathead screwdriver. After that, you’ll have access to all the screws. Simply remove everything you see. Once done, you can mount a standard terminal onto the cooler.
The following article numbers would work for this: 12987, 13763, or 12965.
Which terminal you choose is up to you.
The easiest way to connect everything to the Eisbaer Aurora is to use the quick-release fittings that are already on the Eiswolf’s tubing. You can continue using the tubes and fittings. The only additional thing you’ll need is coolant.
That said, to be honest, if you’re running the Eisbaer, plus the GPU cooler, and then also a second radiator, the Eisbaer’s pump will most likely be too weak. In that case, I’d recommend getting a reservoir with a proper pump right from the start.