This didn't require too much work. Swapped out the Cinelli cockpit for some Nitto bits to better suit me, and go with the Made in Japan theme (Tange frame, Shimano, Ritchey bits). New and chubbier tires too for better ride comfort. Shortened the chain.
Before

After


Nitto Pearl stem and Mod 55 handlebars

Nitto Pearl stem and mod 55 handlebars

Drivetrain still needs a bit of work (incorrect length BB, high gearing not so great for my fitness or local terrain).