My suggestion for Menards is simple: with all the wonderful buildings you've tooled, how difficult would it be to tool a catenary system? It doesn't have to be an operational system... just one that would look good with GG-1's and EP-3's running under it.
I imagine you could sell one and two track versions... and if it took off, maybe add a New Haven style too. The basic tooling would be simple and repeatable, with folks being able to purchase as few or as many as needed.
I only bring this up because of how many questions we see about it here every month.
Second idea: open a Vermont location.
Jon