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I reckon everyone should give Messy a....brake. On a serious note, cut the guy some.......slack?
My two cents is that Messy, you're doing the right thing by selling this. Maybe do a little bit of homework, look into the kind of ratio that will suit you. Consider the kind of riding you're doing, how hilly or flat your regular rides are etc. If I was you, I'd do what most 'fixie' riders do at the beginning- either get hold of a cheap track frame or a fixed-converted road bike and actually have a go at riding fixed, playing around with different ratios until you're comfy with whichever one you end up using the most, then spend some time thinking carefully about what kind of frame you think you'll be suited to. Shop around, ask questions on here, read posts, see how the 'rules' work (to avoid ear-bashing from the LFGSSPD) and don't rush into anything, especially if you're on a limited budget

Good luck with the sale \m/