Hi all, My winter project is rebuilding my '86 Centurion Lemans RS. I have had the bike since new, and everything but tires and bar wrap is original. I am planning on replacing cables, chain (though probably not gears as they seem to be in good shape), bearings and ???. My question is, assuming my lbs has cables and housing, do I order full lengths and cut to size, or do they come pre-cut? I think I follow the instructions in my bike repair manual, but am kind of lost as how to begin this.

If I did this right, here is the before picture. Thanks for any help