I ended up getting the Seasonic.
Going to run the rig without risers. I have one aorus 1080Ti and a zotec is on the way, didn't buy the 1070Ti mini yet. I've heard the aorus takes up a lot of space compared to the other 1080Ti models. I'll see how much space I have left on the motherboard. Might just keep this rig at 2 cards.
Thanks for the help.