Touch up rust spots in black steel speaker stand?

Hi,

I purchased a pair of Osiris speaker stands for use with a new pair of Merlin TSM monitors.

Considering that these stands haven't been manufactured in over a decade, the ones I got are in amazing shape, but there are some very small rust spots around the base of the vertical pillars, and I'd love to touch them up if I could.

I was thinking of perhaps removing the rust with some fine grit sandpaper, and then repainting with some flat black model enamel.

Anyone else done this sort of touch up job? Any hints?

Thanks!!