sounds drastic but it is not
No lead or asbestos in the old Zolatone. The old overheads are usually a mess and usually need major clean up. My suggestion....remove them by drilling out the rivets along the upper and lower edges. It is not hard and an electric drill will work if your tool limited. Then us a good stripper to completely strip the cabinet. Then either polish the outsides and paint the insides (or leave the natural aluminum.) Refinish the wood doors. Reinstall with 1/8 inch pop rivets with a hand riveter...again an inexpensive had tool if your limited in tool the area.
"If it can't be reduced, reused, repaired, rebuilt, refurbished, refinished, resold, recycled or composted
then it should be restricted, redesigned or removed from production."