RE: show me your plan hangars.....
Check around at some of your local architects and engineers. Ask if they have any 'Stick files" that they are no longer using and would like to sell cheap. I know that with the advent of CAD, most consultants don't keep full size copies of the plans around anymore, so the 'stick sets' have gone away, and are usually sitting in the basement gathering dust. You can clamp several sets of plans on one stick, and if you get lucky, you can get a roll around stand or wall mounting bracket for them to store them.