As I lay more track down, I am starting to see how this will operate. I am thinking about putting the freight station in the middle of the front two tracks (the front track is not laid yet, but the #6 switch is in place). As I lay more track, I realize that the tracks south of the second crossover on the arrival track and the drill track are too close together, and I will widen them.
If you look at this picture, you can see how the arrival and drill tracks get too close.
The engine house is going to be where the Dremel is sitting now.
I am also planning on scratch building an office to place at the back of the layout, this one might be a little too big.