Accessories WTT: Proof Carbon LMT converted AR 14.5" 223/556 barrel

I know this is a long shot, but I am looking to trade my low round count (<100) 14.5" Proof Carbon Fiber AR barrel that was LMT converted by D. Wilson for an 18" Proof Carbon Fiber AR barrel, either new/low round count unconverted or D. Wilson LMT converted. I am only willing to work with well established members with solid feedback.