A 275 gallon tote is 2,269 pounds for freshwater (8.35 lbs/gal). That is over the bed limit for many 1/2-ton pickups. I haul my irrigation water tote on a trailer.
However, if you don't fill it all of the way, it will slosh like crazy.
Most of my totes have a threaded connection in the lids, but you would probably have to drill a hole in the lid for they oxygen line and caulk it prior to the trip.
How would you get the fish OUT of the totes? The valve on the bottom is usually 2" which would work for minnows and fingerlings, but not for larger fish.
'Rod, you are harshing my buzz! Seriously, your points are valid. I was thinking to cut a larger hole in the top of the tote, if it didn't compromise the integrity of the unit. Then, I could install baffles and get the fish in and out more easily. Finally, fashion a lid to cover the new hole.
Based on the responses here, I may be OK with well-packed oxygen bags and a cool day. I will be trout shopping in the next few weeks.
