Ok, I'm going to proceed and build the table to the maximum size as already shown. www.jolley.ch/Railroad/rail_base_plan_update.pdf So my first questions are regarding the base products, some articles on the internet say you need to be careful of the base products mean the wood you use to lay the track on should be a type soft wood. I intend to built my rail on foam over the wood to enable me to channel rivers and by placing different thickness this would create a bit more landscape for a slight rise from the sea up to the mountain area. So Question: 1.) Parts of the rail (town area) will most like be on the wood and therefore what quality is needed (how soft). 2.) Is the idea of foam a good one or is there other possible products? 3.) What is a reasonable angle for a scale N, locomotive to climb 10 Degrees?