Hi Bert, while you're in the general area, do you have a photograph or diagram showing the location of the convertible top motor cover?
I've owned a few first generation Camaro convertibles and as far as I can remember, none of them had the cover. In addition, I can find no information on the "shield, Motor Assembly" for any model except the full size cars (up through 1964), and the Chevelle (1964-1967), which states that it's not available as a service part. There's also no mention of the shield in any of the 67-69 Camaro Fisher Body manuals and to be honest, I don't remember ever seeing one on any Camaro convertible. That doesn't mean they didn't come with one but there's no info that I can find. I DO see them from the repop vendors, but of course, that means absolutely nothing. If they DID come with a shield, these were the kind of parts that were tossed in the trash the first time the car went into the shop!
I've attached the exploded parts diagram from the 64-67 Chevelle (item 66) and you'll notice the shield faces the rear of the car. (The diagram for the 55-64 full size car shows it in the same location - facing the rear of the car.) I don't have a drawing of the Camaro, but I've also attached the drawing for the 65-70 full size car and you'll notice there's no mention of the shield, which is just one more reason I don't believe the Camaro ever came with one.
However, that being said, I DID find the diagram for the 67-69 Firebird and it DOES have the shield (number 67 in the bottom picture, and again, not available in service). This doesn't mean the shield came on the Camaro since the Firebird got a lot more "do-dads" than the Camaro, but it makes one think!
Ed