So just to be clear your looking for the sheet metal cross brace that attaches to the forward part of the trunk and the drivers side upper shock mount like shown below
Should have cut this one out and saved it
Yes that is correct. Its two plates specifically. The first it the one you have shown which is fitted to the forward part of the trunk, the second is more of a cover plate that is fitted underneath. Both are spot welded to the body with about 150 spot welds! Mine unfortunately was quite rotted out and couldn't be salvaged, so looking for replacement plates.
These pics may give you a better idea of the plates themselves that I am looking for!