In case someone's interested in my plan,
I'm plugging exhausts on a splitter, same for intakes. Only two voltage controlled fan headers on the mobo. So, intakes would have their own header and exhausts their own. Gonna set up fancontrol since the BIOS is lacking on the fan curve department.
I'm picking Noctua NF-S12B redux-1200 models as my intakes. There will be one intake at the front, then one intake at the ceiling. For exhausts I'm looking for SilverStone FN124 (it's 15mm thicc), which goes to the side panel. For the back exhaust I'm either picking up another redux or be quiet Pure Wings 2.
Sounds weird, doesn't it? Well, my case is inverted design so the mobo is screwed on the left side, instead of the normal right side. This means that the CPU will be lower, and the expansion slots are on the top. Also meaning that the GPU will be the other way around, with its cooler pointing upwards, sucking air from the top of the case, pushing hot air off the back and sides of the card.