Several venders (like JC Whitney and most rubber suppliers) offer generic window rubber. You basically get a rubber form with a cross section that is close to what was originally on your vehicle and buy the rubber in lengths, by the foot, cut to fit, and super glue the ends together. To determine what cross section pattern you need, cut across (90 degrees to the run length) your existing rubber in a location that is still good, and match up your cross section with the existing options they have pictured, measure for the length of the rubber you need, and order it. They may not be "factory" and they may not be perfect on sharp bends, but they can be made to work. Street rod people have done this for years. The next option is to have a larger piece of glass cut (I suggest you make a plywood pattern for the new glass) and have the larger piece of glass bonded to your pinch welds. Gene