JB,
Dearborn Classics advertise soft trim for our cars in their catalog but I'm not sure if Ecklers owns them now.
SMS Auto Fabrics would give the best quality but tend to have long deliveries in the best of times. You could call SMS and see if they have your fabric in stock; if so they could ship you the fabric and you can have it sewn up locally. Btw you can find your original fabric on the SMS website before calling.