hey! Soon I'm going to buy/make my first fixie, but I need some input from you guys to decide on my size. I'm 5ft5 and my insteam is 31 inches. I know the right size for me is probably a 52cm frame, but where I live those are really hard to find. Even 54cm is hard to find. So my question is: would it be a problem for me to ride a 56cm frame? I think my legs are pretty long, but does that matter?