I don't suppose you were in Le Mans 2 weeks ago for Le Mans Classic? There were nearly 30 DeTomaso cars in attendance, so it would have been a great way to see the differences between the different models.
Lille is sort of far away.. If you lived in, say, Biarritz I could probably swing by and say "hi" and show you some of the books I have.
When you know what you need, let us know! Good luck!