Remove the pump, remove all those nasty plastic bits, remove the gas valve....
Not needed at all.
Undo a gas pipe and the connection from the main hex to the hydroblock, which then lifts/pulls/swings out of the way, though it isn't obvious that it will. There's a cutout in the metalwork.
2 screws and it's out. Once you've done one they're out in under a minute after draining, moaning, etc..