I got the wiring run inside, and did up the inside with 1/2 metal conduit.
The wiring for the disconnect and solar charge controller are REALLY easy. It's just a red wire and a black wire. From there, I mounted the Anderson disconnect to the plywood just below the solar charge controller with a pair of small wood screws.
The video has all the details, and of course, it has been cloudy weather ever since I got this going! So far, the highest I've charged at is 7 amps. That was with my motorcycle battery pretty much fully discharged and the sun actually peeking out from behind the clouds for a few minutes!