Personally, I really like being able to reverse a train's direction, so I played around with adding reversing loops to the latest design. Here are two options for your consideration, with and without a siding. These may require some modification to one corner of the existing town.
All curves and switches are either O54 or O72. As much as possible I tried to use stock length straights, but a few cut pieces would likely be required. If you like either one of these designs, I'm happy to provide a parts list and make it clearer where the cuts would go.
