I'm not sure if this is helpful for anyone else, but I decided to go with a Tex case for my build and was faced with the fitment issues other members have mentioned. The fix was fairly simple so I figured I'd share it. I cut a piece of scrap paper so that that it fit fairly well inside the Tex case. Line the scrap paper up on the bottom of the PCB and rub a crayon or something over it to reveal the high spots (RGB LEDs). Use a hole puncher on each one of the marks so that you end up with a template to make the trouble zones on the ribs of the case (see images:
http://imgur.com/a/T3QBH).
I set my Dremel up with the height adjustable "Multi Purpose Cutting Kit" (#
565, good for half-assed routing) and a high speed cutter (#
196). I laid some small pieces of stainless sheet metal across the case to support the Dremel, but you could probably use two Bic pens if you were so inclined. At this point it's just a matter of being patient and letting the bit do the work - push too hard and it bites and goes for a ride.
A note: the 196 bit, like most Dremel bits is
trash for light duty work... but then again, Dremels aren't really milling tools are they? The outcome was less than perfect, but I feel the results were much nicer than if I had attacked it with a sanding barrel.
Sorry, I don't have more photos of the process but it was more improv than executing an actual plan.
A terrible photo of the
finished product (lubed 65g purple Zealios, aluminum LeandreN (JD) plate, gun-metal Tex (lipless), and the ever-so-common Carbon SA keycaps.