I have spoken to Mark Wileage who did the colour for the SE, and I have an almost unfaded Kodak print here, it isn’t very different at all to the Tech IB other than the slight green in the IB being absent.
Mark did color for the 2004 DVD release - I worked at Technicolor at the time and his description of the conditions and timeframe were pretty dismal and surprising. It’s amazing the DVDs look as good as they did - Did he do the SE as well?