These and multiple other companies around that can pump a lot of water over a long distance in a hurry. Not sure why they are not utilized.
https://whitewatermanagement.ca/project/emergency-response-flood-and-fire/
I know some folks in the jet boat racing community had installed smaller tires and wheels on the boat trailers so they could transport them in an enclosed trailer to different events. The roll cages on the boats with the larger tires would not allow them to fit inside the race trailers.
Nice thing about the old school thumpers is they are not as tall as the new bikes. A little lower center of gravity and Can get both feet down to the ground if needed. Could be dual sport, the have the speed, fuel mileage not so bad and a little larger fuel tank.