Trying to sell a house where snakes live is not easy, even if the snake room is clean and organized people's thinking is or will be "what if they moved and left a snake behind" "what if one escaped", and that to non snake people is nightmare material making them think twice. Ideally you want your potential buyer not to know which mean not to see the snakes.
I moved 7 years ago, we found a house and the first thing that moved out while we were re-painting the new house but still living in the other were the reptiles. My situation was easy since we only moved 10 miles away and I was doing things around the new house every day before the final move.