South London Bike Polo (Tues/Thurs/Sun) - Newington gardens SE1 / Agnes Riley gardens SW12

Mark Kifer - thinking about your height (same as me, roughly?) I'd go for a 53 cm frame.

Medium pompino frame and forks would be a good bet for you. They come up for sale reasonably often, now that everyone is spending shitloads on other polo specific builds.

My medium pomp frame (no fork) is still for sale.