I had never heard of Katzkin before, so I looked up their web site. They advertise leather trimmed seat covers, which I think means they are made like most OEM seats, which have leather in the seating areas and vinyl around the perimeters. I can't find any information on their web site as to the quality of the leather they use. Are they charging you $1995 for the front and rear seat covers?
Newer seat covers should be easy enough for you to install, you shouldn't have any problems.
No one lives forever, the trick is creating something that will.