Dave, it will your luckiest day ever if you find a supplier with in-stock blue 1963 convertible rear seat covers. Black followed by red and fawn were the most popular colors. All the others come after that and are going to be special orders that may take a year or more to get. In addition, convertible rear seats that aren't already installed in a car are a rare find. Ones for sale with blue seat covers are probably non existent. I think you should go the route johnregrus suggested in an earlier thread on this subject. Order them now. It may take a year or more for delivery, but the longer you wait the longer until you get them. These kind of waits in the car restoration hobby are the norm these days, not the exception. I think that most SNS members will agree that a restoration like yours is not a short term project. I think you have to come to terms with the fact that supply chain and shop delays may result in your car not being finished for several years. JMO.