Application advice in exchange for donation?

Hi guys,

So during my application process I saw all those admission consultants advertise their services for lots of money. Some people used them. I didn't. I was lucky to have a friend who already went to a top b-school and who was willing to read through my essays and give me some feedback. Well some people are not as fortunate to have friends or family with this background but at the same time they don't want to use admissions consultants (either for ethical reasons or because of the $$$). For these people, I had the idea of maybe creating a list of volunteers who are willing to give feedback in exchange for a donation to a non-profit. Here are my questions for you guys: Does something like this already exist? What do you guys think of the idea? Would any admit, current student, or alumni of a top b-school be interested in joining as a volunteer? I made a mock-up website of how this would look like with more information:
https://mbavolunteers.weebly.com/

If you are interested and don't want to answer on the forum then send me a PM please.

Thanks!