I recently removed two interior doors when I added a wall, but I am leaving the doorway openings. I have put sheetrock up on the sides and top, and am looking for the best way to finish. I am considering paper-faced corner bead, then mud, sand, and paint. This seems like it might be the simplest, and I think it would look fine. Is there a better way? Thanks for all your help.

I have a home built in the late 1930's. Most of the doors were removed; for example, the dining room french doors that opened to the Living room were removed, a set of doors from the front bedroom to the sunroom were removed, the door leading to the upstairs and Double French Doors that separted the Dining Room from the outside patio, which is the opening that I want retored with French Doors. I measured the opening a few years ago, I don't recall the size, but it was not standard. So, my choice was to purchase Pre-hung doors and re-do the opening OR order custom doors. So, I fond a place that sells old house stuff; items that were removed from old homes. I discovered a set of french doors that were almost the correct size. I bought them, along woth the original hardware, but I have never hung them. I have had the doors for a few years. I have to cut off about an inch in width from each door. I will make the cut on the hinge side since I do not want to mess with the area of the door that will hold the old door latching mechanism. My question is this: How much extra to I cut off of each door to allow for hanging them in a double opening? Any other advise would be appreciated. Thanks, Tim