Based on my limited experience w/other organizations, I don't believe the donation basis will work well. Perhaps a minimum fee to be a member, one that might be affordable to the majority. And the possibility for members to make a donation above and beyond that, so we can hit the mark? Possibly Post a graphical reminder on the home page so we know how much more needs to be raised? Perhaps someone could put out a suggested/mandatory poll for current members, to see who would be willing to pay and how much as the minimum?