^^^Yes, pics.
If the point of this pistol is to eventually remind you of your dad, do nothing and leave the wear he put on it. This is what I would do if it were my dad's pistol.
If the point is to get it up and running, I would ask someone who had done work in that era who may have built something similar. Wayne Novak, Bill Wilson, etc. Or pony up and pay Ted Yost or Jason Burton.
ETA-not that you care what it's worth, but doing anything could make it less valuable depending on who did the original work.