Unless you have some superhuman strength or a dolly/cart whatever, don't try to move more than 10-15 gallons at a time, especially in plastic containers. I'd use 5 gallon buckets, lots of them. I'd also mix up a bunch of new water, maybe 40 gallons or so (depends on the livestock you're moving) in the new location if possible so you don't have to move it. Then you'll be doing a good water change at the same time.