>>1039286Unless you want to keep the bars you have, get a 26mm quill. You can easily shim 25.4 bars to fit it, but if you stretch it open for 26 bars it will fatigue and crack (been there done that). All the nice reproduction oldschool bars are 26mm.
I ride the nitto d hard and am basically a nitto shill, but my 44cm noodles are probably my favorite bike part. I've had them on my main ride for years, they're the main reason it's my main ride, and even now i have a modern bike with oversized tubing and a threadless stem i wouldn't change them. They've been crashed a lot too and they don't give a fuck.
Keep all the tubing as narrow as possible for aesthetics, but with your funky allum frame you could bend those rules with some chunky wabi sabi pieces. Please please no awful threadless adapter.