Ron,
As AleX1/9 suggested, you might want to check out an auto upholstery shop. That's what I did and was very satisfied.
A lot of the seat covers on the Internet look like a universal seat cover you slip over the existing and they never seem to tuck in correctly in all the right places. Others just look like a cheap product.
If you have any auto upholstery shops near where you live, why not get some quotes??? You might be surprised at how reasonable a price it can turn out.
Mike