I cannot appraise the value, because I have not seen in person other com parables except in online sales, which we all know these cars can be less than desirable because of inaccuracies and shoddy work. I do, though, have a Minor in Marketing and have a firm grasp of the Target Audience you would/should market to. Austin touched on this with his comments, prompting my reply.
I see many cars advertised as "Clones"(mostly COPO 69s) on eBay. Further examining always seems to find egregious errors, if replicating a certain model is/was the desire.
I would market the car as an exact Day 2 replica. After pointing out some things that show your passion for detail, then, you can justify a price based on that detail and with quality above the "has beens"out there. I am sure someone will see and understand and it will be just what they want and can afford. You want that potential buyer to quickly weed out other cars and lock in on yours. Clones are accepted today, only if done right, and yours is, A lot of guys it does not bother that it does not have a pedigree. They just want one that looks like the real one they cannot afford. Hope this helps my Friend.B.