What about the coop she shared in previous post? @WVduckchick
Looks good, but I have no idea how well it would hold up to the elements.
This one is similar, but less height and more length (and cheaper).
115"coop
I'd go with the larger ground space, and give up a little height for ducks. But I wouldn't put more than 3 or 4 call ducks in any of them. None of these pre-fab things would serve very well for full sized ducks. I think the gazebo thing was better.

I will make sure to put it about 3 1/2 ft. As for a top I’ll be putting wire (not sure which kind yet) on before I put the actual roof to help keep those nasty critters out of the pens.