Yes, Pablo has done exceptionally well here.
The accounts from all parties are quite different and it is extremely difficult to piece together exactly what actually happened. Piuma, for example, claims he has both Sea Harriers in sight throughout the combat but is then mysteriously hit from behind by an unseen combatant! (Actually, Sharkey.)
When I get a moment I will publish the combat as seen by Donadille. (Bearing in mind he was the first to be shot down.)
Pablo also sent me this web site in Spanish:
Combate Aéreo en los Cielos del Atlántico Sur - 1982 - Defensa.pe - Foro de Defensa y Actualidad Militar
I don't think Martin Hale will like this!
ES