[Ken McKay]

KS I see you did a lot of work putting up the side views.

I captured these basses earlier and put a straight line from the back up to the scroll to illustrate the angle differences, then I added the front line to create a "box" where the nut sits inside.
I did this last night but didn't post it so here it is. Pretty much the same as yours but with the lines. You obviously don't need the line, you can just look, but it does help define how far the fingerboard is out from the left hand.

Question: Is the distance from the imaginary line up the back in relation to the nut (just where the strings exit the fingerboard, a variable to control? When designing or restoring a bass where the neck will be reset the overstand can be varied by adding some wood to the heel (or removing). A bigger overstand will allow the nut to move more away from the imaginary back line and visa versa.

This reminds me of the old Sesame Street game "One of these things doesn't belong".