Thanks for the reply.
I tackled the pipe / elbow replacement and EGR blanking this past weekend and all went well.... Well apart from a dropped spanner.
Thankfully I had my bro to assist and we managed to recover it without having to remove the under tray.
Gave the EGR valve a clean with Wynns EGR3, which I know attracts positive and negative opinions. In my experience it worked well, although not much crap came out, probably because I regularly boot it
The EGR blank has been well worth it and the car is running sweetly
I would recommend it wholeheartedly