leather seat repair

[dusterbd13]

im putting black power leather buckets in my 70 duster. theyre in great shape overall for pull-a-part seats, but need a little attention.
the drivers side has a small tear, less than 2 inches long, back near the seat hinge. it also has some wear where the seat is no longer entirely black, but more of a grey like my boots are now that i havent polished them in years.
any simple and inexpensive ways to fix this and make it look right?
thanks
Michael