I'm still puzzled why you want to, in the limited space you have, try to run the LARGEST pieces of freight and passenger equipment in a layout that would require sharp (less than 30" radius) curves!? You may like these pieces of equipment, but it probably won't satisfy you seeing them looking cartoony taking #6 switches and less than 26" radius curves. That is one reason why I decided to model the early 1950's. I'm about the same age as you, and I never saw that decade, but the variety of interesting rolling stock, their dimunitive size, and interesting and appealing visual design has kept me hooked. I have considered modeling the modern era, but I can't stomach watching my modern locomotives screeching around 24" curves. The only way I could plausibly model the modern era is if I used 4 axle power and 50' freightcars. I'd imagine that you can agree with that.