Thanks guys. The Challenger, AS90 and Warrior are probably a bit more modern than what I was thinking - I am thinking of a scenario around early '80s (maybe a Falklands or maybe WWIII one).
The Matzo Kasten Chieftain and their similar scaled Salidin might be options:
I am also looking at some Shapeways options...if only to detail the Hovercraft.
Was tempted to add 1 or 2 Sea Wolf SAM launchers:
or maybe a Phalanx:
Maybe some Land Rovers as well:
Generally, the idea is to have a British equivalent to some of the large Russian/Soviet Hovercraft such as the Aist-class: