#433802 I would be rather relaxed about this....
if you with all your research time spent and care for the subject can't find it, others won't anyway.
This was a single race attempt, and if there's not an obscure source of a fan to be unearthed we are stuck with the same handful of pix for eternity.
Here's a model:
http://www.automodelli.com.br/loja/product_info.php?products_id=389&osCsid=59027b854cca261018d0681b06b30171
http://www.automodelli.com.br/loja/images/ford%20capri.JPG