BlueConcorde
A hearty welcome aboard here from me also. (Sounds like you are doing amazing work on the FS-X Concorde). Brit312 has given you a good idea of just how hard the F/E used to work on Concorde, and juggling the fuel system was always his pièce de résistance. (Might also explain why a beer or several at the end of a trip was absolutely essential). I'd certainly let Brit312 answer the balancing bit, and I'm afraid I've no info on the lateral moment arms of the tanks. (I did have a rummage).
As far as automating the system, I agree that it would be incredibly difficult even now, but with the technology around during the 1970's I would agree that it would say that it was just about impossible to do it with the same level of finesse as Brit312 and the guys..
Dude