How to check for/deal with snakes in old junkyard cars?

Im buying and restoring 3 cars from a local junkyard and im excited to do so but im worried i might unscrew a part and find a copperhead underneath a door panel or something, its in a rural area over by a forest and has maybe 150ish cars, the cars im buying is an 83 Camaro, a 90 Mitsubishi Eclipse and a 86 Honda Civic 3 Door, im not to worried about the Eclipse but im kinda concered about the Honda and mostly about the Camaro, how can i look for snakes and what can i do to make sure i dont stumble across any? Heres a pic of the camaro just to give you an idea of what im looking at

Read more: How to check for/deal with snakes in old junkyard cars?