Like most of the businesses I’ve been involved with, you don’t necessarily want to try to plan what this looks like at scale. Scale will come with adoption. Start small, setup a site that allows donations and claims and then start announcing it publicly. See what happens, what we need to change / adapt. See where abuses occur.
That’s not to say we shouldn’t plan anything yet, but a simple donation and claim system to start with, effectively a crowd funding site, but one where the funds are raised before the claim.
These are my thoughts at least.