Sounds like some good, solid planning for a steel dream bicycle, to me. I agree with Gerry about the Genesis frame sets, they are very interesting for a build like you are looking into. Make sure you are looking at the good, U.K. Genesis bikes, and not the knock off that WalMart has, here in the states. Those are poorly specced, and built, BSO. If it doesn't have to be a build that you do, Bianchi is releasing a line of steel classicly oriented bicycles with steel frames, and bosses for racks and fenders, too. Best of luck on choosing your frame and components, pictures here will be mandatory, of course. Cheers.
Bill