He looks a lot like one my Dad killed this past year.
I think he's a 3.5 (almost), and right around 100", but I doubt about 105".
Great buck nonetheless. Good luck.
Here's my Dad's, that went in the high 90's. Yours looksa couple inches wider though.You have to remember there's not near as much measurements on a 6 point, as there is on say, a 8 or 9 point.