on IRC offers 200 BTC (donates now, but return it IF more people donate)
plus 200 BTC to be just borrowed (anyway need to be given back durin max 1 year, faster it getting enough donations)

I guess we can consider it +200 at least, so 600 BTC is founded,  and basically it makes sense to start development (will take it lightly in first 2 weeks - still got other jobs, and then fully).

Would you handle/escrow it all?

I will draft details of what will work in the "800 btc" version