Congratulations to all.
Well, it was a risky finish, and the USSR probably won't last past 1991. But we did what we set out to do - or, what we decided halfway-through-the-game to do.
I think we could have done better, but we were distracted by some short-term goals at the beginning. I think I learned more about civics through this game. (And also, about modern units. I usually stop playing somewhere around 1950.)
I would also be interested in another, in a month or two. I won't be switching to Civ 5 anytime soon - until I hear there is work being done on a mod similar to this. So there is plenty of time for another SG in the Civ 4 RFC family.