When I got my first light weight bike in the seventies I decided on a Kabuki Diamond Formula. It was a very light bike , compared to my old Varsity . It wasn’t cheap but also nothing really special with standard SunTour mech and DiaCompe brakes. I still have it although since switching to Campagnolo components years ago. It really is a great bike , I did Eroica California in 2016 on this bike.
Kabuki Diamond Formula