This could be entirely off - but have you thought about EBay? I see a lot of "learn to...." programs being sold on EBay at various times, also, a lot of people are trying to learn that kind of thing in order to set up a storefront etc. It could also get you some attention.
For some reason that was what came to mind when reading your budget and post. I always try interesting avenues to see what will make my clients money, and for some reason this case sounds like a possible fit.
I have never tried something like that, so if you do it, let me know how it goes.
