All of the 777 layouts are in the WIKI.
The 77H is the only club suite aircraft to have a seat 8A and all of the BA 777s with club suite have galleys & toilets in the door 2 area.
BA.com doesn’t display the fleet codes the way it used to and they seem to now show 77W for the club suite fitted 773s (referred to as 77H here) and for everything else show just 777.