re: restore wood plane

zinc plating lasts if correctly done. cost depends on volume of work, that is the number of pieces.  I part numbered each one & gave overall dimensions about a hundred for correct plating on 4-6 planes & drills.   Japanning sticks good & brings piece back to its orginal condition with no chance of future wear or rust for storing parts in basement or garage. after painting, I stick in toaster oven to harden. Kinda smelly stuff!!!   Fun winter hobby project.
Jim