I polished all screws and pins and blued them with torch and quenched in oil. Wow, they turn out just amazing! I tried to take a picture but my phone camera is just not good enough.
As I started assembling the frame, I noticed that the disconnector looks just like 1911 disconnector. Then I realized – it IS a 1911 disconnector, no wonder it doesn’t fit. How did the gun work with it, I guess no one will ever know. Long story short, I ordered a proper early style 1903 disconnector. Also ordered a repro of the early style black grips.
This project is becoming expensive!