Newbie with a Sunbird

[MB89SB170]

Hey folks. I just shook hands on an '89 Sunbird 170 SPL with an 88hp Johnson, for $875.00. It needs a little cosmetic work. My most pressing issue is the left side windshield is loose, like the screws into the console broke. Also the left side window plexi is missing along with a short piece of aluminum extrusion that seperates the clear portion of the window from the little triangular smoked portion toward the stern. Any ideas as to where I could obtain used or replacement parts? I'll post some pics soon. Thanks