Sounds really nice! Congrats!!

If you're starting your move in the morning, I'd go with the snakes in the first trip, during the coolest part of the day. Place each snake in its own bag or pillowcase. (If you use pillowcases, turn them inside out so the snake can't get tangled in threads...and check the security of all the seams/stitches.) Tie the bags securely, then place them into a tub or other box you can secure. A flat tub is best...don't stack them on top of each other. Put extra paper or towels in the empty spaces so they can't shift around.

Put them into the car last thing...drive straight to the apartment..then take them out of the car first thing...go inside and tuck them away on a closet shelf or in a cabinet until you finish the rest of the day's work. They can spend a few hours in the bags without harm until you're ready to get their homes set up again and unpack them.

Hope that helps! Good luck with it!!