Originally Posted by
dedhed
I would be rebuilding the hubs and BB, and reusing cranks and freewheels unless they needed to be replaced for some reason.
If the wheels (hubs) are smooth running now, would question why there is a need to open them up at all.
A visual look at the condition of the bike should tell the OP a basic history of the bike, as in, has it been cared for/maintained, or abused, you can get a 6-month-old bike which has been used every day with no maintenance in a worse condition than a well maintained/unused 30-year-old bike
Tires I get, innertubes, these will have seen no UV-light (which will damage the tires), if they still hold air, no real need to replace chain, cranks, etc (i.e. metal parts) you can visually see if these are good/worn/scrap, cables (inners and outers) & brake pads, why not, as they are cheap.