Well I finally got some time to do a little work on this project. While I was taking it apart I had a different idea with the doors. I will be using the lower two sections as two swing-out doors and the upper as a flip up. The upper portion will be for at least one 8 channel power strip and a pull out shelf that may or may not tilt down. This would be where I could put controller modules. In the sump area on the right I am planing a 5 gallon reservoir for fresh RO/DI water, with a panel in front to attach MP10 controller, future Apex controller and ATO.
I'm gonna go with a black stain, with a light grey inside. I don't need much support to add, but will have to add a plywood bottom to support the sump.
Looks like I can still do this for under $100, and have quite some time to finish it as I will not be using it anytime soon. I am unable to set a tank up at my new place and will be taking down my current one as I can't get to it but once a week. :( Keep an eye out in SWAP.