Thanks for the suggestions. I like the idea of making some sort of window plug that I could cover up if it gets too chilly at night.
I do know not to leave a gas engine running while sleeping (been driving 50+ years), and suspected that leaving the key on "ON" without starting the engine was a bad idea with all the dashlights on. But I couldn't think of alternatives... I'm not a good "think outside the box" kinda person!
Thanks again! After way too many months of delay I've learned most of the critical stuff I need to know. The RAV4 is finally modified with a sleeping platform box where back seats used to be and newly tinted windows, as dark as is legal. Made reflectix panels and curtains, and bought a privacy tent and a used 3-man tent, along with a host of other critical stuff.
Tomorrow the solar panel and solar generator (not the right term but easier to say, lol) are supposed to arrive. And this morning at 7am I ran a packing trial to see where everything will go... looks like everything will fit, even my favorite books, heh.
Next Tuesday noon my mobile home will be sold, finally freeing me to head out to CO to visit a friend I haven't seen in 30 years...... and then who knows where, somewhere over there, to camp for as long as I want or am able, though thankfully I'm pretty spry and healthy for my age.
I'm more than ready to go... I'm tired of Florida heat and mugginess. Just not ready to sit down in a rocking chair forever, just yet.