Shimano UN26 is only $8.
Cup and cone bottom brackets have no seals. So, a cartridge-type bottom bracket is much superior.
Shimano UN26 Square Taper Bottom Bracket | Chain Reaction Cycles
New brake pads for old brakes are also cheap. I wouldn't skimp on these either.
Last edited by Barabaika; 03-18-17 at 01:41 PM.