IIRC, my trans guys and I have talked about going to a later 66' trans which would mean that I could lose the second pump and its weight, but also I would lose the second pumps pressure built up that gives some good mean 1-2-3 shifts. Plus I would not like going to an aftermarket floor shifter on the floor and prefer my hands up by the wheel and the look of an A990 column shift. With this current 65' case, I have also thought of running the rare NO PARK tail housing which has no provisions for the parking mechanism making it lighter, but I like my parking mechanism too much to make the sacrifice.
Man, 14 Lbs is darn good, especially moving/rotating parts.