What kind of bus are you restoring? Camper, Deluxe, etc.? I've always wanted to do a Deluxe, but restoring the window rubber would cost as much as the rest of the overhaul!!! :eek
Safari windows must require a king's ransom by now...the authors of my fav VW rag decades ago scoured the lower regions (Mexico, Costa Rica, etc.) for defunct VW parts yards and dealerships and bought up all of the NOS parts they could find...safari windows, glass taillights, etc...