Can't be done. 99% f the original material was done under an agreement that satted specifically that no money would be made off of DF, and that the original writers retained their copyrights and granted EN World unlimited rights to post the material, but no power at all to give anyone else permission to post it (OGC sections excepted, of course).
The upshot of that is that without the direct consent of every single contributor, DF can't be used in any way at all except as a free setting hosted by EN World. And it's absolutely impossible to make money from it.
Of course, individual contributors can give permission for their specific work to be used in such a way.