I think Daniel received all his visions and wrote them in various portions during his own times (in the mid 6th to early 5th centuries). However, the book of 'Daniel' as we have it today was most certainly compiled by Ezra the Scribe after the captivity and probably received re-editing during the times of the Maccabees. William Whiston in the 1700s demonstrated that Josephus was using the oldest and best copy of Daniel available and that it clearly pointed to Antiochus and Rome in Jewish understanding. After that, the Septuagint was the next oldest and least corrupt, and finally the late Massoretic Hebrew text that we have today. Whiston points out that much of Daniel was probably restored by Barochah from the Aramaic after the times of the Maccabees (and after Antiochus had gone on his Bible burning campaign) --viz.
William Whiston, Six Dissertations: Dissertation II, London, 1734: p. 126-32.
So yes, it is reasonable to date Daniel in its final form today around 150 B.C. when the scribal colleges re-instituted after the Maccabean revolt were busy making new copies of scripture especially for the communities surrounding Jerusalem and sending them to the Temple and synagogues for study.
But to answer your question briefly, there is no such thing as a credible Dispensationalist view. It was an invention out of John Nelson Darby's own imagination in the 1830s. That's all it ever was, that's all it ever will be. End of story.
OK so in your view the book may be older but it has been edited. The question then becomes how would you know that (for example the claims about its compilation by Ezra after the exile) and how serious are the editings to the basic message of the book? If Ezra brought it together it remains prophetic in genre rather than apocalyptic unless the later editings claimed added the bits about Alexander etc.
I am not sure why it has to be a problem for the book to include loan words from Persian, Chaldean etc and a mix of languages e.g. Aramaic and Hebrew, as Daniel was almost definitely multilingual and in serving all these different empires would have had to have been really. It does not necessarily prove later editing and comments on the style of language used, here and there,is really speculation from this distance and given the paucity of source materials to draw on.
I would also accept that Daniel was written by Daniel in 536 BC without necessarily accepting a Dispensationalist interpretation of it.
1) WHAT JESUS SAID: Matthew 24:15 Jesus quotes Daniel 11:31 and 12:11, speaking of 'Daniel the prophet'
So when you see standing in the holy place 'the abomination that causes desolation,' spoken
of through the prophet Daniel--let the reader understand--
The references to daniel in the gospels include:
Dan 3:6 - Matt13:42, 50
Dan 7:13 - Matt 24:30, 26:64, Mark 13:26,14:62, Luke 21:27,22:69
Dan 9:27 - Matt 24:15
Dan 11:31 - Mark 13:14
2) WHAT JOSEPHUS SAID
Alexander the Greats behaviour before the conquest of Jerusalem.332bc
Account occurs in Josephus who clearly regarded Daniel to be the author and if this is a reliable report about Alexander reading from the book then it dates the book before 332 BC at the very least:
. . . he [Alexander the Great] gave his hand to the high priest and, with the Jews running beside him, entered the city. Then he went up to the temple, where he sacrificed to God under the direction of the high priest, and showed due honour to the priests and to the high priest himself. And, when the book of Daniel was shown to him, in which he had declared that one of the Greeks would destroy the empire of the Persians, he believed himself to be the one indicated; and in his joy he dismissed the multitude for the time being, but on the following day he summoned them again and told them to ask for any gifts which they might desire. . .
Alexander Reads About Himself in the Book of Daniel - Good News Magazine | United Church of God
3) ACCEPTANCE ACROSS JUDAISM:
the book of Daniel was embraced by all sects of Judaism, whereas other literature produced after the schisms took place was only embraced by particular groups within Judaism.
Josephus on Alexander the Great and the Book of Daniel | For His Renown