You can scribe the top edge of the trimboard to the ceiling and still have the bottom edge level with the cabinet tops (you may need a wider board for this). I don't see a way to run the crown across it, though, because you can't scribe the profile. May have to have the crown die into the sides of the cabinets rather than go across.
Usually you can skim coat an out of level wall or ceiling, but not by over an inch.
Sorry, I can't think of a better idea.
Usually you can skim coat an out of level wall or ceiling, but not by over an inch.
Sorry, I can't think of a better idea.