Post your general FAQs, comments & questions regarding all Ducati engine & transmission restoration here. [Specific engine FAQs should go in the 'BevelHeaven Garage' section.]
Pete, As suggested on that other site the pivot could be welded all around the groove area and it would likely be stronger than it was.Looking at the pics on this post the groove is only there for the roll pin that keeps it on the spline piece. Doing it the way it is on the E-bay lever you could weld the pivot,make it one diameter then drill/tap for a hard[12.9 or so] bolt to go through into the main arm a bit.A washer on the bolt will keep everything together and a button head bolt will be almost invisible. You might have to grind a bit off the spline part so the pivot shaft sticks out a tad so the bolt can be tight and allow the k/s to pivot.