Windshield replacement question.

Sorry if this is dumb question, but I'm getting ready to have the front and rear glass replaced on my 79 Camaro. I have the exterior chrome trim pieces as well as the molding clips. Other than the glass, which the guy is ordering, is there anything else that would be expected for me to have ahead of him doing the intall? Should I look for the actual molding that holds the windshield in or is that something that the installer would be expected to have?

Thanks for the help.