[Phlogiston]

Thanks for the compliment Ron.

One use for the brush-plating kits that MIGHT actually work is repairing SMALL rusted spots on the chassis following a complete rust removal using navel jelly or the appropriate abrasion. I have had satisfactory results on copper plated chassis and using nickel on others - need to make/get a zinc kit. Saying this because I see what looks like one rust spot on an otherwise clean chassis.

OR, you could just finger paint on some cheap silver paint. ( cheap paint seems to be closer to old-time silver paint, whereas most new "silver" paint tries to mimic chrome and is very bright/missing the greenish cast of old plating and paint). Just use your finger to wipe a small amount on like stain. This will avoid the freshly painted spot look.