if they are not all noobs, and if you know how to efficiently make money then i have no doubts it can be done. it will be some effort, but can be done. the part with "earn nic efficiently" will be important ...
the more critical point is to buy the ice. i dont think you will find a steady flow of willing sellers if you want that amount of ice. so if you want a lot ice and there are less sellers then ICE prices will go up. that will make it harder...
30-40 members with some decent skills can do the 10bil. if you start from zero then it might take a few months to get it running.
how much ICE you get is another question.