sounds like you planned things right. i'd suggest a brake if you're new to fixed. no one knows how to ride brakeless right off, and usually end up looking like a jackass if not getting hurt.

two things: you know for sure you need a 103mm BB? i'm always murky on this and keep my fingers crossed when setting up a bike. but i guess you also don't need perfect chainline.

two: you talk about "if [you] like fixed..." and, um...well, what if you don't? i guess you could flip that flop to the...oh...wait...