Tara (I love your name BTW), I had to LOL when I read your post as we can SO relate the needs of furkidz! What breed do you have?? We have three Shih Tzu and we have continued to upgrade over the years, RV and truck, "for the furkidz' sake".
One of my concerns, like yours, is power failure with the A/C shutting down when we might find we need to leave our furkidz when we do live full-time in an RV. We have never left them in our TT, other than visiting another camp site in a CG, but I am sure there will be times when full-timing the need will arise. I didn't even know anything existed like the link you posted. Thanks so much for sharing!