All very interesting. Ian Colvin's book Flight 777 makes an interesting read. It was recently updated and published by Pen and Sword.
Ivan Sharp, Mr Sharp's grandson and Ben Rosevink, son of the Flight Engineer have done a lot of research into the tragedy. They actually spoke to the pilot who shot down the DC3 who claims it was a tragic mistake.
I understand there are still some documents relating to the incident which will not be released for some time yet.