Our sharing circle provided a space for the caller to keep bringing the idea up, which eventually lead to our community members applying gentle push to actually make this happen.
The momentum was gained once another member decided to help the caller – and the two begun the legal process. In the meantime another member of our community helped with conceptualizing operations of the association and setting up the digital stack (website / payments etc.)
Update [28 Jan 2020]: MVP version of the website is shipped! Check it out here.