Hey guys, first off I wanna say my name is Nick and I love this forum, pretty good stuff here. I Recently picked up an 85 300zx NA 2+2 for free

from my Mother-in-law. But it was sitting at a mechanic shop for some time, and they said that it had some electrical problem (research says digital dash problem) so now its in my hands i was wondering if this is a common problem and how can iit be fixed. And some kids with BB guns shot out my rear window and driver side rear qurater window, Besides glass what exactly would i need to replace the glass? Such as sealant or weather stripping? Not really sure cause i never worked with glass.
Any info is appreciated and I thank you for any help.
Nick.