Replacing a Back Pocket on a Pair of Levi's

My husband only wears Levi's. When I say he only wears Levi's I mean that he only wears 501, button-fly jeans. No other jeans will do.
In 1988, when we first met, that is all he wore, and to this day, it's all he still wears.
He has graduated to wearing other colors, not just blue, but they have to be Levi's 501s.
Being a frugal guy, he has a difficult time stomaching the purchase of a pair of jeans for $50. Consequently, he buys them on sale, or better yet, at Goodwill or Savers, when he can find decent ones that fit.
My husband will wear a pair of 501s for years and years and years. The new ones are for work, and as they wear, they are cycled and worn for home and outdoor activities.
It probably goes without saying that I have become pretty fair at repairing Levi's 501s so that he can eek a few more years out of them.
One of the areas that wears out rather quickly, is the back right (wallet) pocket.
Here is a simple method that I use to fix this.
Note: This method works for us because of the large number of old Levi's 501s my husband has.
Materials Needed:
Jeans the same color as the ones to be repaired
Seam ripper
Pins
Jean needle
Sewing Machine
Thread that matches the stitching on the jeans

Step 1: Carefully remove the worn out pocket with a seam ripper. Don't forget to save the red Levi's tag!

Step 2: Choose an old, done-in pair of Levi's that are the same color, and carefully remove one of the back pockets. (One that's in better shape)

Step 3: Remove any loose threads that are left on the pants and pocket from the seam ripper.
Step 4: Pin the "new" pocket in place, by matching the original sewing lines on the back of the pants. Don't forget the red tag!

 Step 5: Machine stitch (with a jean needle) the pocket along the original top stitching lines on the pocket. Use thread that matches the top stitching on the jeans. Be sure to stitch over both lines of stitching. Satin stitch at the top corners to make the pocket secure.

Step 6: The pocket is replaced. Can you tell it's a different pocket?

I think this repair could work with any type of jeans.