new vent windows?

Hi all, the vent windows on my '68 Coupe really suck. No matter how tight I push them in from the outside or put an insert between the inside latch and frame, they still leak and have wind noise when I drive.

Does anyone know if and where I could have the vent windows redone? Do they have new vent windows out on the market? Or should I get a good used set off another Mustang? If so, will the vent windows from a '68 Fastback work on my '68 Coupe. I saw a pair that look real good.

Thanks for any help/advice you can offer.

Dave