Duster Quarter Window Popout window seal replacment advice

I haven't messed with the seals but I have a little experience with the rivets. I don't know the size off the top of my head but you can't get the correct size from a home depot or sears. They are a smidge too short. While waiting on a part at Napa I was looking at their Help! section and they seemed to have some speciality looking rivets in there that were longer. I'd check them out and see.