Here's a description I wrote up about my studio in the main building in my trip report blog :
"I think the main bed is a queen-sized, and the sofa is a double, and theres enough floor space for an airbed. The kitchenette is around the corner by the front door (its not all in a straight-line like most so it seems roomier in here). Theres a little table with two chairs, and the TV is a small flat-screen in a small cabinet with drawers -- so its not a big armoire taking up lots of space. The closet has a vacuum cleaner, iron and board, broom and mop, and a pack and play. The bathroom has a little better shelf than the Beach Club (HA room) had, but its not fully accessible. This room is partially accessible tho -- wide doors -- except there is a ledge barrier to get in the front door (the one that kept out the luggage cart). Theres a bar in the low bath-tub, but no bar by the toilet. The sink is on a pedestal, and there is probably room in there for a wheelchair, but not an ECV. I expect they have some fully accessible units. The balcony is nice, except that it has very little view -- what it has is blocked by the railing."
The area by the door is covered, so might be okay in the rain for the scooter (but maybe a poncho or something over it might be helpful if rain is expected).
You might call the resort again directly and see if they can work something out for you. My memory may not be serving me well, but I don't remember HH as being the most wheelchair-friendly place I've been lately. There are hardened paths to scooter around, and I think there's an elevator at the beach club, but I don't think there's a hardened path very far out onto the beach.