That is a nice one, I don't think it's worth the 20K the owner is asking though. Because it is a bricknose and has a 460, I think the owner would be lucky to get around 10K for it. Only the powerstroke ones are really going for high prices right now.
I also have a 4 door bronco, I converted it to a bullnose last year.
1976 Ford F150: Regular Cab, Long Bed, 2WD, 460, C6
1985 Ford Bronco: Sold