So, you'll have to decide how to re-create top tube cable guides. Simplest would be to grind down and sand the originals, rust condition and paint to match. Then buy a set of clamp-on cable guides from AliExpress for $8. Measure tube diameter before ordering, of course.
Bottom bracket bearing will depend on your chosen crankset, too. What are you considering paying for this frame/headset/fork/seatpost bolt combination? What do you envision as the budget for the final build? Do a spreadsheet and calculate in advance to decide what this frame is worth to you. DO NOT buy before counting the costs.