Consortium Blockchain

Hello good people !

So I have this school project that mates and I are currently working on. The objective is to encourage local charity donations through e-commerce platforms in Belgium. In order to build trust between e-shops, donators, charities and our business, we would like to implement a consortium blockchain solution that broadcasts all the transactions.

So my question is : how much does it cost to develop such a thing ?

I’d be happy to clarify some points related to this project if needed.

Thanks for reading and have a good one !