Summary

While searching for different enclosures, I happened upon
http://www.thingiverse.com/thing:2004279

Made by
http://www.thingiverse.com/nootrak4

It had a layout for the A8 board, a Raspberry and two mosfets, and was very roomy.

I wanted the fan cover to go more with my hex motif, so I changed that up a bit, and moved the wire inlet hole.

I thought one 120mm fan should do it, so I designed it to blow air down then up and out the top to clear all the heat sinks. This design also can be mounted outside an enclosure.

The only problem with this design is access to the MicroSD, but I use an extension cord on to my corner brace for that anyway.
http://www.thingiverse.com/thing:2243664

The "Assembled Case" STL is for viewing only. Don't print it unless you want to saw it open.

I probably have more wire connections then most, with 2 LED strips and a power supply and mosfet fans, you may have easier time with wire management.

Edited 4/27/17

I removed the holes for attachment to the frame, so you can put it anywhere on the side of your machine, or outside an enclosure, and I moved the hex hole for the left z axis stepper motor cable.

Edited 5/01/17
Turns out I made the fan side of the base too high. The fourth screw gets in the way of the X axis motor's travel, so I shrank the bottom's thickness for the next one I print.

I added a version 2 of the bases that have more eyelets for wire management, and have raised stand-offs for the mosfets so you can route wires behind them for more organization.