O.K. You "have too much rolling stock" I have trouble with the concept I have about 160, 20 locos, but my Gramps had shelves that were about 4x70ft or more. He had over 160 locos! H3ll, he had more than twenty electrics alone. So I have been building some recently for a layout near your size (find the "what I did on my layout today" thread, a good one to follow too). So how about a set of color coordinated shelves to cover the area under the layout? Moving the X-brace to sides and back and using a small brace on the front legs for side to side stability would free the underside for a little storage. Maybe shallow shelves hinged like doors? A wheel to help them swing easy? I suggest a kick molding base, and raised lowest shelf so things don't get kicked, 4-5" raise. It will add a very finished look and supply you with convenient storage for your stock not in use at the time...oops, low battery, Im out till later.
OOOOOOHHHH, I like that! And Damm! You got yourself some trains!!! Impressive collection! I may have to tell my wife that I am not as bad as she tell mes I am!!! I have added a shelf to the wall where I have some rolling stock not in use. I like your idea. The scary thing I was thinking of expansion!!! I know, I am a noob! I should just enjoy what I have. My ADD is telling me go bigger! I think for the time being I will follow your advise and as I get more and more buildings and scenery added I will look into modifying underneath the layout for storage. Thanks for your reply!!!