1" master cylinder rebuild kit alternative

We probably have the same opinion on this. I would never accept a part or repair that I have made if I wouldn't honestly believe or know that it's as good/strong or better than the original, especially if it could be a safety issue
In my earlier years... I made a pitmal arm out of 2 other arms. I had a professionally welded, but I got nervous so I had it X-ray checked. Absolutely 0 penetration in the middle, infact there was a gap and it looked like Swiss cheese where it was welded. I went in a different direction.