I have decided to add a separate staging yard to my layout. I recently acquired some new engines, so now I want to be able to be able to run different trains without having to move them on and off the tracks every time by hand. It will be 5 ft. long. The tracks will be spaced 2.25 inches apart so that I can place/remove cars from the tracks manually. I also have space to add 2 more tracks on the outside if I need to expand it. Is it worth the space to include a run around (as shown) so that I can switch the direction of the train (I run diesels) or should I use that space to just extend the track?