Another eBay item
Item 6632270691
Interesting pictures of the design process. In a portfolio. It is all named as GT-40 items. Front cover sheet is Pardo and Ford.
Pardo signature on pictures is printed, but appear to be a hand numbered item. Early concept pictures are a little fuzzy (probably due to enlargment), but later items are nice. Shows the rear of a white car without bumpers.
Seller has a couple available.
Seems legit. I have an email for him if you can't get him through eBay. Send a PM if you want it.