Dayle sells OE and custom leather seats. I have have seen them in person and they are really nice.
http://svx-motorsport-accessories.st....net/inac.html
You can install them yourself. Once you get the seats out (a few bolts), then all you need is a few hours, some wire snips and some zip ties. And some patience. There is a writeup in the how-to section if you want to take a look at the process.