Well... here's the question.
Are you restoring your car for you (I would) based on what you found and documented, or what someone who has never seen you cars says "is right" (based on one signature offered and a handful of examples).
Or are you restoring it to get a $3 Chinese plastic "trophy", or badge, or paper or whatever judges give out, (don't know, don't bother anymore, as have given up arguing the obvious with some... seen cars marked down for "old" carlite glass opposed to cars with new repro as "it's nicer".... in original classes, go figure) and the rights to say "someone I never met before judged my car to their standard".
Me, I also have a top latch/tag I believe to be original with no sig, I will not scribe some scan of a photo of a random sig on mine. Mark me down as I can't prove your opinon is wrong only show the facts I found on the car (impossible, the judges catch-22, show me a pic... "I've never seen it"... "must be PO from 1978 who restored it"... right... so you lose no matter what... unless you have Lee Iacooca there to swear it came off the line that way, but then they argue he didn't work the line and he's been Photoshpped into the conversation...
)
If others feel the need to mindlessly put JR on latches, in 20 years any top without John Raminski's name (is it the full name, initials, or J Raminski, was he consistent on every top on every car and did he do them all?) will be "incorrect".
I have not seen your car in person but from the photos and communication we've had I'd say do what you want, based on waht you found, on your car, and be VERY proud of what you have done. Agree to disagree, as I guarantee no matter what you do if you show it some "expert" will always find something "wrong", and it won't be consistent judge-to-judge, show-to-show.
The one-size-fits all mentality is a fallicy IMHO.... told on one hand not to blindly follow what was seen on other cars, then told "do this" as it was seen on a few other other cars... and becomes Gospel... kinda odd....