where to get seat reupholstery for this seat?

[suspect]

first off, is there not enough traffic for an interior section?

now to my question.........does anyone know of a place (preferably a vendor on this site) that has reupholstery for this kind of seat. it has the built in arm rest and i love it. i'm not even sure if it came with the 67-72 years. i've only seen one other photo of someones seat like mine on this site, so i'm doubting it came stock.
if i can't find a replacement cover, then i'm just going to have to dish out some dough to get it redone.

thanks.