someone told me there was a website where you could buy the original upholstery and just swap it yourself.
Yup. Find a good passenger seat and swap the seat bottom to your driver's seat.
-Charlie
The wiring on the passenger seat is different from the driver's seat - there is a occupancy sensor on the seat bottom in addition to the seat belt sensor, so while the swap is easy, there is a minor modification to make to the seat cushion wiring.