I worked for Matt in the 90's. I recall he was able to source the fabric but only in tan. I don't think he was able to find a source for the black fabric--with pinstripes. The solid black fabric should be relatively easy to match up. If anyone knows of a source for the black/pinstripe please post it here. BTW the pinstripe,when new, was actually green. The stripe turned white as it faded.
I used Re-Originals for some replacement fabric for our 89 Milano. Came right through with the correct pattern. Actually might buy another yard or so to go with the car. Great to have these people around.