Bill is right, it has been a large subject around the Bronco circles. I wish some ingenious soft top company would figure out they have a huge market for these things since the top design would work for sixteen years of production vehicles. That is a lot of Broncos. I bet the design of one to fit 78-79 would only be slightly different adding two more years and thousands of possible customers.
If I had the money I would start the company myself "Jed's Soft Top Company - We blanket down the wild Bronco"