Bag em up heather and put them all in boxes, with some hot packs, Move the racks and enclosure stuff first. Set the tubs up with whatever substrate you have or use, and get them heated and ready to go.

Move the snakes after. Easier to set things up at the new place without all the snakes in the way. They will be fine for a few hours.

Then, when youre done, you can just bring all the snakes and organize them how you want in warm happy enclosures.