I built a fender panel out of some sheet metal I bought at Lowes. This hides the Starter Solenoid. I removed the battery tray and bolted the new fender panel in this area after painting it the same color as the car. The MSD box now mounts on the new panel and the wiring is hidden inside between the new panel and the original fender well along with the positive battery cable I routed from the trunk. It works great and hides most of the wires.

I included the best picture I have of the engine, but it doesn't show the MSD, just part of the panel. Unfortunetly, the car is in the transmission shop getting some warranty work done on it or I would have included a newer picture.