I see,
so you rivet the trunk in piece by piece.
I just tried to load
www.csxinfo.net, because I think Kris had a good picture of the bigger "kick outs" to cover the upper shock mounts.
with the upper mounts cut flush you would have gotten away with a smaller one, just to clear the upper control arm in bump.
that is one of the things I changed in the Cobra Restorers blueprints.
dominik