Yes, the size is an issue, I agree, knew that when was buying the sucker. But, here where I dive it is possible to park next to the sand. 100lb for a fit person is heavy but very doable. Each time I have to haul it, I think how much money I saved, I get a second wind.
Most of the time the waters are calm, if not, I guess, I can go without a scooter. I would not want to get UV-26 in my face with a wave.
Plan wise, I doubt I'd get away from the shore further than the ledge, there is nothing there for a long while, I think. Thus, I'll be going parallel to the shore at the ledge, it is like a mile out?. If the scooter breaks, I can clip it and tow it out. Getting back to the car will be tough, as a current usually takes divers north. But if I walk in the water towing it behind me, maybe doable, since it is neutral. If it floods. Well, salt water, bye-bye batteries. I heard if fresh water floods, it even operates, but salt water ends all. I'll have to attach SMB and swim it out. Well, unless I have to buy a second UV-26 to drag behind me in case first one breaks... But getting 2 in the water probably will be beyond my abilities.