The reason I ask for examples is to understand if there is a precedent to this situation. You would think this kind of structure is not uncommon.
Take, for example, Arceus:
Davoth and Arceus both lived in a plane larger than the multiple 2-A structures they created.
Davoth and Arceus both have their created 2-A realms as a part of their being, meaning their existence is superior to the 2-A 4-D part of the verse, thus it should qualify as superior enough to 4-D to qualify as Low 1-C.
"It should also be noted that, even in our FAQ's section of the sites Tiering System page,
we note that anything that is superior in nature to that of 4D space-time should be considered Low 1-C."
Per the Ultima for the Arceus thread: "There is no such thing as being "countably infinitely larger" than the whole of a real coordinate space. For instance, if you are a 4-dimensional object (existing in a field defined over the reals), you either are smaller than R^4 or the same size as it. By definition, you can't be a 4-dimensional object and be larger than that simultaneously."