Roger,
We have these two sofas to restore. I am sending the leather swatches for you to color match. Let us know which dye (s) we will need. I was thinking of 1 Qt of Aniline-76 and 1 qt of Antique-27 Just in case the Aniline-76 doesn't cover enough.
Also, this leather doesn't have stains, should we just clean, rinse, hydrate, fatliquor or should we use a prep cleaner first.