NHS? Fudge that for a game of soldiers
I still think Kiwitea would be the best - yes its small but easy to fill and looks great.
Kiwitea was my first thought but honestly it's a bit ramshackle and hard to get to. I wonder whether they could do something with the grass pitch at Seddon Fields that was created for the WWC, they'd need to build stands though (might work very well if Foley is still looking to take over the Western Springs stadium)