After spending many weeks reading through the forum and asking many questions, and interviewing at least 7 hvac companies, I followed the advice of the experts here; get a manual J and "it's all about the install". At the time I was looking, someone close by was looking for the same furnace, a Rheem/Ruud mod. He only had a furnace install while I had the furnace/ac install. The point is that he did not take the advice offered on the forum and paid 20% less for his install. The question is who got the better deal!
I have included photos of each install. Photos with "A" in the top left corner are mine, and photos with a "B" are from his install. Both furnaces were set up as a mod with the correct thermostat. My installer suggested not putting in a humidifier and see how I like it this coming winter..he can always add it later and agreed to keep the price the same. He also put a humidistat in the furnace to work with the air conditioner which I understand is called Method B. (works great!). The air conditioner I purchased was a Ruud 14 seer APL-JAZ Series. Note that "A" install is very tight. On the recommendation of the installer I installed the furnace facing my north wall as opposed to reversing the position of the original furnace and face it into the room. The installer said it would look neater and would not affect his install or any servicing.
I am looking forward to hearing your comments on the installs. Is "A" a better install than "B" or are they both equally good or bad.
By the way "Thanks" to all the pros here who help answer our questions! It was a great help to have "outside consultants" working for me including Plexus!