Share 'Rebuilding my mid-90s mountain bike... worth it?'

So I bought an old but mint (not anymore lol) Nishiki Kodiak last summer, and it's been a wonderfully reliable steed. I rode it all summer, then bought another bike for good weather, but kept riding the Nishiki in bad weather/rain, for grocery runs (panniers), and then all winter. It held up great despite very little maintenance, and now that my new bike has been stolen, it looks like the Nishiki…