More photos will be uploaded. Pictures aren't that great as of now!
-The Hyper 212 Evo fits the Z87n board, but the heatsink will have to be turned 90 degrees or else the fins will be blocking the GPU slot. Also only one fan can be used because the second fan will block the PCIE slot as well.
NOTE: By doing this, the base pipes of the heatsink will be touching a few capacitors on the motherboard (see one of the pictures). I looked up if this would be a problem and it seems like it should be fine. It is just a slight touch and the caps are not being bent or moved.
-I'm not absolutely sure if normal-height ram heatsinks will fit, but definitely go with low-profile ones just to be safe on this and other mini-ITX boards.
-The new R9 280X looks really tempting.