Thanks! The total run will be the dogbone connected with about about 24' of track connecting them.
I see what you are saying with the reverse loop. All the electronics will be housed inside a nearby shed, so only the wires powering the track will see the elements, but I will look at running a return rail vs the reverse loop. Again I don't have exp with G scale. He has an O scale in his room (around the ceiling) and I grew up on HO scale so this all similar, but very different at the same time.