I have a 73 Chally. I want to use a window plug from a 70 RT/SE. I have the frame, glass, chrome molding, and interior moldings. It should fit fine after I grind down the studs in the current window opening right? Is there any kind of gasket that goes between the plug and the body? If not, how did they keep it from leaking. I don't think the vinyl top could keep water out. Where can I find a vinyl top to fit this car? Am I missing any parts? Thanks, Steve