So cool, I just love this thread, Jeff. Well, I'll add some photos here if I can.
One of the Broncos you hung around back then is the "Pony", Stroppe's 2wd racer that debuted at the '70 Mint, and was Parnelli's first winning steed at the 1970 Baja 500 where he and Bill Stroppe took the overall win. Todd Z and I were able to free it up from it's longtime home in an oklahoma museum where it had been off display for the last 8-10 years. More info on another thread I think we need to make, but here's a vintage shot you posted, plus a late 70s shot, and one modern day shot of where it currently resides. (it got re-glassed to '80 Bronco pieces, but the EB frame and front suspension are as was raced originally.