working on a project, and will need about 20 units of queen sized bedframes, where to find them?

originally thinking of making them myself, but after some careful calculation, it still costs more than rm120 to make one, excluding my 'wage'. so, is it possible to find something around RM100 - 150? doesn't have to look nice, better just a simple box to support the mattress will do. don't even need the headboard.

any suggestions?