I am afraid people are too indivudualist and too apathetic these days to join in and give money to such project. Also many of them are not aware of the fact that certain films cannot be made the conventional way, so they would not understand the need for such extraordinary measure.
I was thinking of some anniversary or of a TV-movie like LTeLV. Recently , there was a telefilm on Charlotte Corday, an anti-jacobin one, of course.
And you're competely right as for the invisible capitalist censorship. Very efficient, and they can preach freedomn of speech at the same time.