The Japanese Metroexpress Sadowsky basses are fantastic. I own one and it's by far one of my favourite Jazz basses i've played and incredibly light. GLWTS. Definitely not to be confused with current Metroexpress offer.
Some info here from when they were released and I would imagine there aren't loads of them about after production moving to Germany shortly after their first run.
https://www.notreble.com/buzz/2018/01/30/sadowsky-reveals-the-metroexpress-bass-series/