The "open-sourcing the sciter" post [0] has gained almost no traction, news coverage [1] etc. This hn thread is the first time I heard of this kickstarter myself.
I think with a bit of marketing, the goal is absolutely reachable. Also there are plenty of grants and foundations that support open source projects. It's likely that with the right application they'll donate the needed amount, but usually they work quite slowly. Likely won't happen in the remaining 53 hours.