Welcome! The history books were / are not very good for great detail on theses old sleds. But yes, legend has it that aprox 400 were made, "most" were returned to the factory, some were made into the 1965 Super Pacer, and some were crushed. And like yours, some never made it back to the factory. That's kinda the purpose of this thread, to write an accurate history book of sorts.
Your restoration looks like a "scuff and paint" compared to what I have seen before! There's lots of people here that are willing to help you with information and repop parts for it too. You'll enjoy it!
Nice sled!