Tools?

I went out for week and after set-up and turned on the refrigerator on gas and nothing. After removing the panel outside, I found a squirrel had been working on a nest and chewed all the wiring. My brother was well equipted with lots of electrical repair parts and 30 minutes later it was good to go. I had to cover the roof vent with wire mesh to keep the critters out.
Another time I was pulled over for no lights. Needed a spray cleaner for the electrical connector between the TV and TT.
Just basic tools is all that's needed.