That car looks very familiar. I bought a McKee in Oklahoma many years ago, and because the body was in poor shape, even had a fiberglass Lotus 19 nose, I found a guy making T70Mk3B bodies off the Jo Bonnier car. It took a while to install the body, create wiring, wipers, head and taillights, etc.
The car had a 355 inch Chevy with Webers when I sold it to a guy out in Connecticut. The headers in the photo of the rear look a lot like the ones I had to build. I later heard the Connecticut guy sold it to someone in NY but I lost track of it after that. It was a street/autocross car when I had it, but no AC or creature comforts.
I have a book on the car with SCCA log books (as a McKee) back in Michigan. (In Fla now for the winter)
Perhaps I can help you with some of the History and what I had to change to make the body work (Lola was slightly longer wheelbase than McKee for instance).
Dan rockonsmile