Thanks for the responses, everyone. It seems as if the 52 wouldn't be a good fit, I've read elsewhere that the Feathers are quite compact in general, and if AlmostTrick found a 52 too small at 5'7 then I'm sure I would at 5'8.
Does anyone know anything about the Fuji Track Classic? I've found one for £350 in my size.
Would save me £200, looks in pretty solid condition. I know the Track RRP is slightly cheaper, does anybody know why?