David,
Although my memory isn't what it used to be, I recall a post on the forum in the semi-recent past which included a link to a site which had a number of pics of the J car prior to the Mk 4 body redesign. Have a go with the forum search tool and see what turns up. I'll look a little more tonite after work; perhaps one of us will strike gold.
As for the Can Am car, the only pics I've seen are in a couple of well-known books which I'm betting you already have.
Best,
T.