Ok, I've had the heart attack (2010).  I still travel very much side roads.   My experience includes getting on 'the road of no return'.

So, I'd like  to open the discussion up.  Or I long ago decided not to tow.  I have the smallest truck camper I could find over here.  You might also look at a campervan.  & go 4wd to keep SWMBO happy.  Me, I have two dogs, Chessies.

I also make sure to have an active cell phone (mobile phone, I think you say) connected to a good carrier for where I am and a good collection of print maps.  Camps Australia Wide I used when there. 

In trying to fish out what's needed in parts of N.Am. I don't especially know, I've just started  a 'security gear' discussion on a N. Am. forum.   I gave an example of where a senior couple in a campervan let their GPS take them down a side road in early N. Am. spring and they found it became unplowed (snow) and got stuck .  The wife survived the husband didn't.  They were lacking the cell phone and I suspect the print maps.

Thus, emergency support gear becomes a part of this discussion.

Also, re. lifting the black gear, after my heart attack, my rib cage was cracked for by pass surgery and I was not allowed to lift more than 12 lbs (6 kg) for 6 months.  Thus, may I suggest you can do one heck of a lot with very small ovens, including the smallest Billmans or a 8" Lodge/20 cm asian made co.   Thus, I also say, you aren't the only one to lift in your rig.

Have you thought of these things?