I wouldn't worry about the inches! He's a great buck and worthy of just about any tag, anywhere!
Okay, I'll guess too since a guess is just that.
He'll finish over 31" wide with that cheater and he'll score over 190" gross if his forks get deep.
It looks like he's got plenty of growing to do and as far as his age, I have no idea what guys are looking at who say he's young. I know they'll say "the face" but i just don't see it. Just wait until he's grey, chasing does and kickin' butt.
Zeke