There is a great way for Rod to continue his skilled craftsmanship and add the missing pieces to the layout. The third river on the steel mill side, an ore boat and Hullet Unloaders. Relocate the coal mine and the same location can be used to ship out coal. The transition between city and commercial could be created with a baseball stadium (partial) along the wall. Just my ideas to add to the great layout. His choices are the only that count.