Sorry this took two days, had to dig the box out of the barn:
Below are pics of a new 67-68 trunk made by Goodmark. I bought it from Greenwood Chevy website, but lots of places sell them.
Quality is exceptionally good, and the part is about 20 percent heavier than my original. No PONTIAC letter pre-drills though. I bought it last year when I ordered the T/A spoiler, just in case I scewed up the drilling!
'68 428 HO M3 Monster, 4-on-the-floor! Need I say more?