86 300SDL Turbo sunroof weatherstrip?

I R&R'd a new sunroof (Tilting)Weatherstrip.
Pretty much straight forward.......except
1: Found 2 rivets loose on back hold down bracket.
short of removing panels(trying to avoid)
any tricks to fixing? I tried a pair of needle nose vice grips, no go
2:The new strip prevents the roof from closing like the old one!
Should I "grease" it with something? If so what?
Thanks

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