Suburban Grind

Or is there no ongoing production of 126mm hubs? Is it possible to shorten a new 130 to 126, but use a modern cassette instead? I want to keep riding my '88 Miyata Three Twelve for years to come - it's a great retro road bike for sure, but the hubs surely are wearing out sooner than me - and I'd like to have second set of wheels, so I don't have to play the tire swapping game.

I just can't imagine everyone's willing cold-set their treasure for the sake of forward compatibility or more sprockets on a cassette.