Removing the rear window trim on a 65 Barracuda

Hello,

How do you get the side trim pieces (below the rear glass) off of a Barracuda?



I have removed the center, but I can't reach the nuts through the little holes in the trunk. Is there a special tool or trick to this?

I have plastic pieces inside the cargo area held in by plastic rivets, I've been told these plastic pieces are incredibly fragile and not to break them.

Any techniques or advice would be appreciated.

Thank you!
Patrick