Great. So you're going to re-work your schedule to increase time in each spot and decrease the amount of time driving at any given time. I agree with a 5 hr maximum for driving time - and that's a long day. You mention your wife is a "beach chair" type person. In that case, I think this could be the difference between enjoying RVing and hating it.
From all the posts, it looks like:
1. One A/C is fine.
2. Most say keep it to the smaller size for maneuverability, ability to handle more weight for stuff, etc. But, if your goal is to convince your wife to keep it and continue RVing, then really - get the one that she is happiest with.
3. no.
4. Depends on the individual. If you do go with slide(s), make sure you have access to fridge, bathroom, etc. with the slides in. Otherwise you'll be back to having to find a public restroom when you're driving.
5. Not a big impact.
6. Be thorough in your pre-purchase inspection, be thorough in your post-purchase testing, etc., and you should be OK during the trip.
7. Plenty to say on that. :)
I would recommend taking your wife to some dealers and test driving a few RVs of various length. Let her feel how they handle, how responsive they are, etc. Also, take the kids and "play house" - get a feel for your preferred layout by acting out dinner time, being on the road and needing facilities, etc.
