Another experiment. Below is a picture of Brabant Island (64.25S, 62.33W) ‘seen from northeast, with Hoseason Island and Liège Island in the foreground, and Anvers Island (on the right) and Antarctic Peninsula in the background’, according to Wikipedia.
The coordinates agree with the map I uploaded above, as to the relevant positions of Hoseason Island, Liège Island etc. From the map, the length and width of the island come to about 55km long and 28km wide, which roughly agrees with Wikipedia.
However the corresponding monopole FE dimensions of the island are 55km long vs
180km wide, i.e. much wider than it is long, whereas the RE estimate has longer than wide. Given that the photo faces south west, I would appreciate views from both sides on which estimate is a better fit.