It's great to have that much space. It's okay that it will take some time. That way you can plan exactly what you want to have. A lot of folks were overly excited and eager and just started throwing things together. Resist that...come up with a plan. Like what your railroad is, where it is, what it's doing and the most important thing is that how will you and others interact with it. Do you have a favorite railroad or place you want to model?
If you are doing a toy train layout or a display loop for your collection that's two types of layouts. If you are going for the model of a railroad remember to consider the Who, Where, What, When and Why of your line....plausibility, purpose and most importantly participation for yourself and others!
You have a "blank slate." You have the canvas. Now, what will you do? Take your time. If you really want to get something going put up some temporary Fastrak while your are thinking. :-)
