@funkeeferret I think you've done a wonderful job filling in the gaps of Hydrangea Hedge 0.5. And the bathroom solution is a very clever workaround for the platform problem. (I will be using that!) Although I fully intended for you to make it your own, I am honored that you worked so hard to replicate my original creation. Had I the patience, I could have had you present me a list of exactly what you did and didn't have and take out only what was unavailable. But, I felt that since I was doing this I might as well strip it down to make it as versatile as possible.
The Protective Pavilion is part of the Duke of Bows venue. And, yes, using it the way I did does require MOO (Move Objects On.) However, I just did a quick test. If you have it and would like to use it, you can get two all-in-one bathrooms under it just by using the "alt" key while positioning them. It might require a little fiddling to make the routing work, but it should be possible. At the very least, I'm certain that one would functionally fit in the center where I didn't need to use any special moves to place it. It would then be a matter of using the "alt" key to place some shrubs to fill the "dead" space under the pavilion and make it more pleasant to look at.
A similar effect can be obtained with pieces from the Big Top circus tent from the World of Wonder collection. Although, it would take more space.