Are you sure that would give 10 games arne? Seems to me it would indeed be 3+3+3 = 9 games...
However, I thought it would be most simple to just do as KR said in the sign-up thread, create 4 groups of 8, let them play 7 games in a group and have the numbers 1 advance to the semifinals to play for the title (so 7 league and 2 KO rounds).
Or would that be too unfair for the group FC Suca is drawn in?