What is so attractive about this suggestion (i.e. that "until a time, times and half a time" is a coded reference to the 'king of Israel') is that it has long been suggested that Daniel 7:25 is behind the Son of Man being 'delivered' into the hands of men.
In an attempt to trace some of the terminology of the passion resurrection predictions to Dan 7, Jane Schaberg proposes that the background of 9:31, specifically, παραδίδωμι, εἰς χεῖρας and μετὰ τρεῖς ἡμέρας, is Dan 7:25: “And he shall speak words against the Most High and shall wear down the holy ones of the Most High and shall expect to change seasons and the law, and everything shall be delivered into his hands for a time and times and until half a time” (NETS)
Three elements of the Synoptic passion-resurrection predictions may be drawn from Dan 7. 25: (a) the future form of παραδίδωμι corresponding to the Hitpe'el וְיִתְיַהֲב֣וּן (MT) and/or the future indicative passive παραδοθήσεται (LXX) or δοθήσεται (Theodotion); (b) the phrase 'into the hands of'; and (c) the statement that the vindication of the Son of Man will occur 'after three days' (μετὰ τρεῖς ἡμέρας). Obviously, the last element is an interpretation of the Danielic phrase “a time, two times and half a time,” describing the length of the little horn's hegemony. The first element occurs in 9:31 and 10:33; the second in 9:31; and the third in 8:31; 9:31 and 10:34. Second, in the predictions of resurrection (all using ἀναστήναι in Mark) Schaberg finds an allusion to Dan 12:2 where some of the faithful are raised (LXX: ἀναστήσονται; Theodotion [TH]: ἐξεγερθήσονται), whom she sees as equivalent to the saints of the Most High in chapter 7.36 Third and most obviously, she finds ὁ υἱὸς τοῦ ἀνθρώπου to be an allusion to the one like a son of man of Dan 7:13, a figure to whom is applied the “predictions of the suffering of the holy ones of the Most High (7.25) and of the resurrection of the מַשְׂכִּיל and their followers (12.2).
It should also be noted that Irenaeus reports that the Marcosians apply the term מַשְׂכִּיל to themselves.
https://www.cambridge.org/core/journals ... 7E34B552DF
“Finally, from so little sleeping and so much reading, his brain dried up and he went completely out of his mind.”
― Miguel de Cervantes Saavedra, Don Quixote