Unless you go the customized route for decals, you can purchase N scale decals to help decal your rolling stock, bridges, buildings, or locomotives. I usually find my N scale decals at train shows. There is always someone clearing out their N scale decals of what they have left or will never use.

or why did I decide on Z-Scale model railroad.   

    I had been dabbling in N Gauge off and on since 1974, when I gave [ ... ]

RSLaserkits Cheltenham Station Build by Modelersguild.com

If someone had told me two months ago, that there is such a thing as a Z scale Craftsman kit, [ ... ]

Check out my building blog on my homepage: PlateLayer Project Blog