Dad,
Being this is an early car with recessed reflectors I would go the extra mile to restore the originals. The early scripts IMO are a lot different than the repops or later Ford over the counter replacements.
After all of the research I have experienced over the last 30 years, I would have preserved my GNS/GT/CS to its original condition. I even had the VIN numbers matching block, but it had a cracked bulkhead. It could have been saved.
I think this Neil build deserves the original scripts. Another intricacy of our GT/CS hobby that few people know about.
There is an ad in our classifieds that Arlie posted with what may be some original scripts. I would scoop them up if I still had a GT/CS!
Rob