We have an 1840s Victorian that we are remodeling. The living room has very elaborate plaster crown mouldings, that we want to save (all in good condition). The question is related to removing a wall behind the lathe and plaster crown. We want to remove the wall, put a header behind the plaster and create an opening between the hall and living room. The plaster has been removed completely on one side, exposing the lathe and studs, and removed up to the crown moulding on the other side. The crown on the other three walls will remain intact. If we cut the studs and run the header below the crown it would create an opening that is too low (lower than desired). I found a product called NuWal, but not sure if it would provide the stabilization and strength needed. Anyone have any experience or idea on how to accomplish this task?