My old house, circa 1906 has solid wood walls that have not been plastered. Unfortunately, the wood is uneven and has large gaps between the boards in places. I am wanting to be able to paint or paper the walls and know my options may be limited. If I install drywall, I will have to take off the window and door trim and floor molding leaving the issue of redoing the casings. If I butt the drywall to the trim, it ruins the effect. Is it possible to plaster the walls with mud and if I do, what are the consequences? IE; will it crack in time or if the house shifts? Are there other options that I have not thought about? Any help anyone can offer will be greatly appreciated. All these problems these old houses cause, but oh what a joy to own one!