That looks great m8.
Looking at the itx version, you can probably get away with using an aftermarket cooler for the GPU. How are your current temps for the 980ti?
That gigabyte card is a perfect match aesthetically. Perfect length so it sits in the middle, shame to switch it out. The founders edition (blower) cooler is shorter and will not look as good imho.
Here's a snippet from running firestrike extreme, ran it this morning whilst it's still a bit cooler during this heat wave.