I agree 100% leave it to a pro installer. getting them out is easy, just cut the gasket on the out side and remove it. I talk with a glass man at the gas pump one day and 50$ each after work and had all 3 done at different times during the rebuild on the trucks.

good to know you got glass from LMC, hope they cover mid 80s trucks as well. I have a set of new gaskets but no glass.