First, I printed the plan into 1:1 and taped the sheets together
Then I put it down on the layout.
I used push pins to keep the plan in place. I then used a little hobby knife to cut slits in the plan on each side of the push pin. I then lifted the plan off the layout, leaving only the push pins.
Then I connected each push pin with a ruler and straight edge. This gives me my centerline to lay the cork later.
For cork, I think N scale cork roadbed is too wide. I reached back into my browsing archives and pulled up an article done by a modeler taken too soon from us, and followed it to produce 12 strips of cork, plenty in this case.
Glue, pin, glue pin, cut, repeat, etc. led to the first layer down:
A couple of quick thoughts. First, since I had sheet cork, I should've just traced the turnouts and cut out the roadbed for them. I definitely will for the second layer. Second, creating my own actually went quicker then I thought. Finally, I need more push pins or I over did it with them, but can never be too safe, right?
After about 2-3 hours of letting the cork and wood glue dry, I put on the second layer, using full sheet to cut out turnout and then patching together about 4-6 inches for the siding transitions. I'll end up sanding them down probably tomorrow night. Completed cork roadbed: