To the OP, he's a great buck. I can see why he haunts your dreams.
Unfortunately I don't think he touches upper 150s; and bet he might not even sniff the mid-century mark. Just seems like Brown County bucks rarely get the age, mass,
and tine length to get there without some significant outside help.
He's a heckuva Brown County LF buck. These two from Brown Co didn't get very close to 150:
FWIW, I hope I am surprised and that buck is still out there for you AND you get a shot at him. One of our hunters killed a buck that was a 2006 fawn last year - anything is possible and my fingers are crossed for you!