Broadly OK.
Point 5 is not true, you do not need EGNOS or a W capable receiver for normal GPS approaches (GPS approaches have been legal in the UK for some time before the EGNOS SOL signal was available). However, Point 6 Should highlife that the EGNOS signal is required for LPV approaches.
Point 7 - I believe for a Greg operator you are supposed to have differences training on this. Although I am not sure (I certinly made a point to get a sign off in my last renewal)
Point 8 - I am not sure this is true for G reg (and virtually any avionics install could be described by the man on the street as 'ludicrously expensive')