Jehoiakim reigned as king some years before Nebuchadnezzer became enthroned as king but it was only at the end of Jehoiakim's reign, that is the last three years that he came to grief with Nebuchadnezzer. So your comment about WT folklore and the beginning of his reign is simply your distortion of historical fact because
So your evidence that Jehoiakim started his reign in some fashion in his 8th year is that he "came to grief with Nebuchadnezzar". The WT retellling of events is not based on any historical facts - by necessity of itself, it ignores them.
Jehoiakim's reign was well along in duration when Neb invaded Judah in his eigth year.
Yes, yes it was. So obviously Daniel was taken earlier.