-Yes, it is an ASRock x99e-itx/ac. 3.8 rom, 64Gb ram.
-The side cover is held on with 4 screws, so both sides match the 12 screw layout. The top and bottom row have 4 screws and 4 hold on the cover.
-For finishing, I will likely sand out any deep scratches, then sandblast, and either anodize...