Again, Ascent Guidance is my favorite tool -- great stuff.

I would really like to see in the window at the bottom a guess / estimate (if possible) of roughly the Δv required to get from the surface to the selected altitude, and then another Δv estimate of the circularize maneuver, if possible.

That is possible, if you simulate the launch through to enough detail
that you might aswell just launch and check if you had enough dV or not.

It's the same reason why MJ needs to do one launch with the craft before
knowing how to time a launch to target.

AH.. okay makes sense.. Welp was worth a shot =)

#1061 will largely fix this issue.