Your idea is great, I myself have already look to do something like that, the problem that I have to meet is that often even if the plugins are free, there is a note that accompanies them saying not to change or share in pack, little to be with a thorough search i would find something but i have to stop the steps. that said maybe you will be more lucky in your research and I think that your idea is very cool and as I know you will do something tottaly great
