Lance, I’m no HVAC expert but I’d at least talk to the folks doing the house and see what it’d cost to extend the duct down the middle of the shop. 30’ of duct, some strapping and a couple drops with diffusers...that’s two guys half a day, cheap. Plan the work while the electrical is getting done and a lift is onsite, they’ll be in and out of there before most folks roll outta bed.
Do yourself and the heat pump a favor and install a system not just a component.
Place looks great and your sketchup skills are stellar!
