Did some tinkering this evening, and seem to have worked out some of the glow problem:
Seems to be largely in the lighting balance. More, lower powered lights don't cause the glow.
Of course, knowing that using the high powered lighting makes it look like a disco throwback could come in handy at some point...
In that last screenshot, you can see another issue. That being that the textures do not blow up well. Look fine in 1x in the image editor, but blow it up to full Fallout size and you get that jagged, low-res crap.
I'm tossing around the idea of re-working the textures. Taking the base that I started with, enlarging to say twice normal size, and doing the marble job to it again.
Trouble is, I've got to be careful or this thing becomes a resource hog. Be pretty bad to not even be able to use my own damned mod.