Need weatherstripping

I need the weatherstripping that seals the vent windows on my 68 Cuda. I've looked a few places but haven't found it. Anybody know a place to buy this. I'm tired of hearing the vent windows whistling when were driving down the road.

Actually I wouldn't mind buying a complete rubber seal set for the whole car but I have yet to see that listed. Seems like parts and pieces are all I come up with.

Thanks, Tracy