Since he has not had a POR as a Life scout, that prevents any grief from falling on you over that issue. I agree with Ed, you have already gone the extra mile and the ball is now in his court, so to speak. He will have to attend troop activites on a regular basis to get elected to anything, or appointed. From his record of non-attendance, I don't think it's going to happen.
I would ask him when re-chartering time comes up if he even wants to be on the troop roster.