My house is about 100 years old. The door jamb is about 10" wide. I've replaced a few doors before, but all of them had standard jams. I'm not sure how to go about replacing this. I'm assuming I need to pull all of the trim & casing out, then pull the brick-molding off the door frame, then slide the frame all of the way back flush with the inside wall. Mount the frame, then re-install casing & trim. Also, i'm not sure where I stop removing the trim & casing at the top, since there is a top-light above the door. Below are a few pics.
Please help point me in the right direction.