Both Dravidian aircraft were fitted with EFIS at build but I am not sure exactly what type and it was not a full digital system. We used to call them the Super 700's. However, I will find out. Both aircraft left the UK register last year and I believe were sold to the US. The other one I know to be modified, was 257064 which was done around 1984/5?. This started life in Saudi then to Australia and the last I heard was in the US.
I don't know anything about the Aruba aircraft. The 700-II mod was carried out on 257059 a series A model around October 1990 in the Arkansas Modification Centre, as far as I know (and I'm usually wrong-ask my wife!) that was the only aircraft to carry the 700-II designation.
Aruba, (Reg is P4-***) is off the Northern coast of Venezuela about 250 st miles NW of Caracus and comes under the Netherlands.
Must get a life rather than remembering all this stuff!!
Mike Echo