They arn't going to be prefitted, the only route I see open is to get the fabric and sew it up yourself. Unless you want to have an interior shop do it. I too am looking to get my front seats recovered, due to the foam dropping down/deteriiorating, causing metal to rub agains it, and making a few holes. But in the end, I am probably just going to build up the foam again, and sew up the holes, since there isn't much to them. For a temporary [or perhaps permanet] solution, would be to go to walmart, napa, autozone, etc.. and get the one size fits all covers.. but I can tell you, they will never fit right.
'89 SSE - GX3 -190k, 155k on body - Back for another ride.