I want to put casing on both sides of this wall that got cut out. I can do it on one side because there's a foot of wall to put 1x6 around. But the other side just ends totally flush with another door. I need major help. I know I made bad a mistake and I'm looking for ideas. Should I just case the side that has enough wall space? Should I case all of it except where it flushes to the other door? Anything helps. I attached a plan grid of what it looks like.