Eden, welcome! I read some of your article on the two kings, especially Dan. 11:40-45, which interests me personally.
First point, Dan. 10-12 covers a period from Cyrus to the resurrection (Dan. 10:1; Dan. 12:2, 13). How is it that you get bogged down with the Seleucids and Ptolemies? Or do you, like most modern scholars, view Daniel as ex eventu, i.e., written after the fact?
Second point, concerning the final versus of chapter 11, these cannot refer to Antiochus IV Epiphanes. E.g., a footnote in the The New Berkeley Bible says: In Antiochus' day Moab longer existed. Antiochus made no African invasions beyond Egypt and he died at Tabae, Persia. Either the writer of the book of Daniel lied, or there is another explanation. You believe in the inerrancy of the Bible, so then the latter must apply.
Some internal evidence from the book itself, indicates that the outcome of most of the visions would lie in the future (cf. Dan. 2:28; 10:14, etc.).