Here I was trying to make a cool, logical choice devoid of emotion and you tell me to choose a mistress. ha ha ha.
I see the comparison.
There have only been 2 cars that I have that great of an emotional attraction to--a 1964 Falcon Sprint convert with 260 4speed in Guardsman Blue--my first car and holder of many memories, and a 1974 Peugeot 504-- a car as much of an oddball and quirky as me. Neither car meets the qualification that they be a suitable car for longer trips for my wife who has severe physical issues. The Peugeot would be comfortable enough---the most incredible ride of any car--- I have had--but finding a rust-free example would be almost impossible, and the HP is just "adequate". The Falcon just is not a great road car for comfort if restored as it was originally built. The convertible, especially, nit being very quiet.
However, the allure for a Towncar is strong. It may have the same "bones" as the Ford or Mercury, but it is a definite cut above. It is good to know that the manual A/C still has the blend door issue. One of the cars I am considering needs the blend door activator replaced, but the price is very attractive--$2500 with less than 150k miles and it has been in the same family all that time. Paint and seats look good in the pictures. Several people have recently looked at it but it remains on the market. I have watched one of the videos on replacing the blend door activator and that project doesn't seem too overwhelming. I need to watch a few more videos and then go look at the car.
Another candidate is a '95 Grand Marquis with nearly perfect paint--dark green- and interior, but it is not a TC and it is about $1000 more asking price.
I need to take my wife and drive some cars. I need her to evaluate if any car is significantly more comfortable and will make longer trips possible. I cannot make that judgement.
Thanks for everyone's help. You have all done as much as you can.