Last night I finished up the wiring on both control panel tiers. I even hooked it all up to my laptop and it worked on the first try. I though for sure that I would have missed a connection somewhere (there's over 150 different connections). I guess I lucked out for once.
The only thing left to do in the wiring category is to clean it all up with a large pile of zip ties. Right now it looks like a rat's nest of wires. I'm hoping to knock that out tonight. I'll post some pics when it's done.