Thanks everyone for the great advice!

IF we end up moving, and it won't be final until the 12th of Sept. if we don't get jobs before then, we will be going Penske and I will be putting the snakes in bags in a cooler with partitions.

The only remaining question is - how large a cooler should I use for the 8 snakes? Largest BP is around 900g, largest corn is around 1000g.