If you are all done reflecting on "presently," give a moment to "momentarily." It does not mean "in a moment." For example, "The plane is now beginning its taxi and will leave the ground momentarily." Gosh, for the sake of the passengers I sure hope not.
Prepositions don't belong at the end of a sentence because they are called PREpositions. Maybe you could get away with it if they were called POSTpositions.
Nonetheless, consider this grammatical thought experiment: An irascible guy is injured in a way that requires a complete head bandage, so he can't use his eyes. He is in the hospital for a couple of days, can't read or watch TV. His friends come to visit his room on the sixth floor and bring a book to read out loud. He hates the book and sends them away. The next day they come back, but they haven't found a better book and hope he won't mind if they continue with the other one. They start reading, and he explodes:
"What did you bring that book I asked not to be read to out of up for?"
It's not like I have put a lot of effort into this project, but I haven't been able to construct a sentence that ends with six prepositions.