Im looking for some input on removing plaster walls and replacing with new drywall. Can I leave the window trim in place? Should I remove the lathe boards and lay the drywall on the studs after they've been furred out, or leave the lathe board and lay over them? I need to retain that thickness due to the window casings. From the front of the stud to the back of the trim is approx one inch. Suggestions? Thanks!!