I wouldn't call 55 gallons a time easy to haul around, but I don't know your setup.
I would be wary of doing it, but it is possible but it is risky if you don't think about it a bit, and it is totally dependant on getting decent quality, unpollutedwater a long way from human habitation and preferably somewhere with some wave action.
The risks of introducing dieseaes are real, but small, but introducing pollutants, both chemicals and tons of organic waste are far, far greater. I hve done it in small quantities , and my softies love it, but they love it for the excessive plankton caused by elevated organics - a tankfull would be an algae mess in a few days.
Where do you live?