When you get it figured out, make a short, to the point, pics included post or thread.
I have two fans sitting on a shelf. I too went into infoverload.
Seems a relay, a toggle switch, temp sensor, wire and a fan should be all you would need.
Betcha' wish your girlfriend was as dirty as my Jeep!
Zombies hate fast food.
Hang on! This is gunna' be a thrill ride of geriatric proportion!