Cool! And nice that you atleast came back and finished off the thread. I hate doing research on a subject where people throw out ideas and the OP makes a plan to do something, but never comes back with the results or what ultimately was the fix.
Alright, this is my How To in how I made flush mounted tail lights. I've seen '69's with '68 light/tail light panels which looks great, but I really like that the '69's have larger lights. I've seen a handfull of '69s with flush mounted lights, but no how to's that I could find so I decided to tackle it.
MATERIALS:
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Leather Gloves
Heat Gun
Grinder
Dremel
Plastic glue or epoxy
$10 (Need 6 total) 3m High-Strength Red Lens Repair Film (you may choose to paint instead)
$6 Clear overhead light panel plastic
1.) Started off with my old crusty cracked tail light lens.