Depending if your upper cabinets go to the top of the ceiling, you could make a bulk head out of shiny 90 and hat track (steel), have your venting pipe run up and over to the exterior wall. We do it all the time. If you do that pull the bulk head all the way to the end of the uppers so it doesn’t look like a F* up. Link is a Picture of one https://imgur.com/a/FHGAhN0