After reading your posts and taking some time to take a careful look at what i have, I decided to hire a contractor to install the hardwood flooring. I purchased the flooring yesterday and am scheduled to have it installed in the middle of December.
As for the doors, trim, jambs, baseboards --- one door was removed and i gave it a sanding job (belt sander, sanding bloc, and steel wool) The finished job is exactly as you described. I will be removing all old wood and have the contractor install new oak doors, jambs, basebords etc.
As i look at it now, this job was well above my expertise but you folks have stimulated the thinking on my part.