Good to see it worked out for you. I also struggled with the hinge a bit, until I googled some images. Here is the link for the latch. Seems a little cheesy but, it works.
66 67 68 69 70 Charger Coronet GTX B Body Stainless Console Latch New | eBay
Not sure if this is what you're looking for. Here are some images of all re-pop stuff I have installed. The gaps are very close and take some patience to get right.
Top and third (teal inserts), 68' Newport Success Sale Special. Bottom is a 68' 300 style seat. My Newport came with the Teal inserts. But the front seat was missing. I think I could remember it being called, the Spring Special, but I may be wrong. I have the fender tag, I'll post an image...
You may be able to fabricate something from this perforated steel. Also perforated stainless steel or aluminum. May not be OEM but could work until the original is found.
perforated steel | eBay