I looked over at DPUG and see they have a pretty good thread going on this topic of scanner-as-densitometer. The responsible thing would have been for me to actually run a series of sensitometer tests and compare the graphs from densitometer to graphs of same negatives using scanner-as-densitometer.

I might rise to that challenge next time I develop some 35mm. Until then, sorry I should have provided some more useful information and gone further than making the trivial statement "yeah it can be done".