b body vent window weatherstrip?

Customer bought the new chrome vent window parts and I am assembling them. The vent window gaskets and up guide strip is nice soft original so we will be reusing those. Unfortunately he is missing the wedge at the top of the roll up glass on top of the assembly. I can't seem to locate it on line. Any body get one before if they reproduce it which I am betting they should. Links?

Thanks
corey

Mega Parts has them.The part# is 132-VWB101.

thanks just ordered them up from Jamie.