Slightly off topic, I know, but a few years ago I saw a full size restored PT-19. It was at least as cool as the Cox model. I was told that the owner found it in a hanger at a small airport and was able to purchase and restore it. It was fun to watch it fly. Short take off run. Appeared slow but agile (maybe just a good pilot).
It would seem that a "scale-ish" 1/2a PT-19, whether log, box, or profile with some concessions made for maneuverability would have to be a lot of fun for sport flying.
Didn't Blackhawk make a version of the PT-19?
It would seem that a cleverly painted Golden Hawk may fool some onlookers