hey so this is my first fixie I will build, and I was just wondering if I could get some advice. I'm thinking i should get a kit, like the IRO V1 build kit, because it seems an easy way to get started. I already have a frame and fork, 1987 Trek 560. but I'll also need wheels... the IRO standard ones seem good to start with as well. What do i need to know about the rear hub and the different spacings? what do you guys think??? is this a good way to start? thanks