I'm the kind that seeks the last .00001 %, and I assure you, lenses are the easiest part of it when you're talking 8x10. As an example of why you're
a little off-track (totally understandable until one has been on the road with this format for awhile), is that you think a Dagor is the ticket for softer
color images. Exactly the opposite! With only four air/glass interfaces, this lens design equates to high contrast. In fact, the multicoated 14" Dagors
I've owned had more contrast than any camera lens in any format I've ever used - so much, in fact, that I sold em off and bought the previous generation single-coated Dagor instead. Likewise, you'd find that Nikkor M's, the apogee of tessar design, inherently have better contrast and hue rendition than even the best plasmats like the Apo-Sironar S. But none of this splitting hairs means much anyway, because you'll never find a combination of color film and print media even capable of rendering all the nuances. You're only as good as you're weakest link. The short story
is that there are lots and lots of good modern lenses to choose from. But going out and paying three times as much for a particular one does not
necessarily equate to that extra few percent performance at all. It all depends on what you personally define as a positive quality; and that means
means you have to test your wings a bit first. 8x10 is wonderful, so enjoy!