If your model is 30,000x35USD, you can get there by getting 30,000/300=100 from each Charter Member. As Polymathica starts internally financing membership growth, this will become far easier. If saturation is five million and the average Polymathican belongs to six groups, average group membership will be 5 million x 6 / 300 = 100,000 which supports a model of 100,000x10USD.
If your business model requires funding, the base Membership will be available for crowdfunding. If you need collaborators or strategic partners, the Polymathica membership will be available for recruiting. And, of course, group members can be e-mailed directly, since the group is essentially a web based, formatted e-mail list. Lastly, the ad revenue created by site based page views (group and forum) will carry a 40% share for the group owner.
While Charter Membership gives you direct access to funders, collaborators and customers, it will still be up to the Charter Member to design a group and a business model that will be successful given the Polymathican profile.
If you are interested in becoming a Charter Member, please join http://polymathica.network-maker.com/groups/profile/12 This will require registration in Polymathica.