Hello, Would anyone know where to locate a new passenger side rear door glass for a 1976 Buick Electra Limited 4 door hardtop? Also, does anyone know if the glass is the same on the 4 door hardtop 1976 Sedan Deville & Oldsmobile Ninety Eight? (They look to be exactly the same from pictures.) Additionally, does anyone make new outside window sweeps for these cars? Thanks in Advance!!