In order to save my school some money last summer, a friend and I built a music folder cabinet. As I was working on a second one this summer, I thought I would see if anyone else would have a use for the instructions/plans I used. I wouldn’t say they are perfect (and I’m not an expert at woodworking for sure!), but the first one turned out nicely and the second is well on its way. Cost for materials for me was under $200 apiece (assuming you have the tools already).
If anyone is interested in getting plans or seeing photos, let me know.