Good deal, I filed on a trigger bar or two and later found out I went too far on one and had to add metal back to it. I have done this twice for various reasons but it worked out just fine, I hardened and polished the added metal before I soldered it on the trigger bar the brought it to a mirror finish after I soldered it.
This is a TC trigger I added to;
This is my latest Haines build with the wonky precarve stock. The web under the breech is 3/8", with the trigger installed as high as I could get it and still stay out of the ramrod hole, the trigger bar didn't come close to tripping the sear. I had to add this much metal just to make the trigger work.