How's it goin... I'm a fellow electrician, myself. Anyway, for a good fitting seatcover, you are going fork up some coin. there are two sites I'm aware of that provide quality covers.
www.gtcovers.com most of their patterns resemble stock fabrics. Cost is around $200 shipped
www.wetokole.com these covers are made of neoprene (wetsuit material) these run ~$300 shipped.
I personaly have a set of the wet okole covers. They are very soft. They fit amazingly well and are water proof and flame retardant. Here is a pic of mine installed:
Hope that this helps a bit.
Jake