My new layout design of transition era on SP --1950's My first layout in n-scale after 50 years in HO. Looks like it will work?? Just going to attempt reducing Tehachapai grade to max of 2.5 rather than 4%. Am planning mainline icing facility as well as either an oil field or mine and of course a sugar beet plant for those beet trains. Appreciate any suggestions, comments, etc.