It's reasonable, it just seems improbable. You need $400,000, and you're going to take donations $20 at a time. That's 20,000 people. Let's even say 10,000 p

It's reasonable, it just seems improbable. You need $400,000, and you're going to take donations $20 at a time. That's 20,000 people. Let's even say 10,000 people (you have some cash of your own, some people will just give you free money). I think this is the sort of thing that you end up stuck in the middle. You'll raise $5,000, and get stuck in red tape around tracking and paying taxes on the "donations", and won't have gotten any measurable amount closer to your goal.