I talked back to NineX yesterday about this conversation and he informed me that he meanwhile got a sponsor willing to cover the costs for the next two years. So this issue seems to be solved.
I'm not familiar with the Leo reference.
Above all, what I wanted to avoid was the situation before NineX, where the guy that was hosting the site offered his help out of the blue, and then there were constant wiki break downs and all sorts of things happening because he was trying to make money of the traffic. That's why I decided to get back to the place where the wiki was born and ask rather than accepting the first person who stepped in.