Here is an update. After some searching online, I found this
www.usamedcoach.com/equipment.html
. It's a luxury bus outfitted with an oxygen concentrator and they have full time nurse staff onboard and two drivers who alternate the driving so it can go straight through.
It's got a queen size hospital bed and they cover the food (including the tube feeding food) and the meals for my wife. They stock up with food before you go and will even let you order from some restaurants and they will get it ahead of time and head it up and serve the meals in the dining area of the bus.
They will even tow one of the cars behind the bus in a trailer.
Total cost for this option is $11K so it is cheaper than the air ambulance.
They also have oversized (standup) vans for shorter trips for less and they also have an affiliation with an air ambulance service.
They say it is 18 hours door to door and that they shouldn't even have to stop for fuel.
We think that may be the way to go (bus) since it is door to door. It even has a separate room with queen size bed for my wife to sleep. Pretty fancy stuff but it beats driving really fast with all the windows down.
Mike