A bit of good news. I had already purchased a 3 ft length of 1/2" weldable rod stock to make a new lift rod for the scrape blade. It is used in conjunction with an electric actuator. That works slick too!
Anyway, I remembered I had some stock left over, and looked for it last night. I found it on the work bench and tried a test fit on the scrape blade for the angling adjustment. It fit very well. Not too tight, not too sloppy in fit either.
I plan on using the Lowe's Mapp gas set up to heat the rod and bend it to make this missing piece. Of course, it'll be cut to length before doing anything else first. I found some 1/2" washers, and I know I have both hairpins and cotter pins to secure the middle with. I also found a compression spring that was part of a two pack I used to fix the pivot mechanism.
So, I should have about zero extra money in this part of the project. The primer and paint (black) are already on hand too.
Yes, I know it should be white to match the scrape blade. But, I thought if I dropped the new pin in the snow, the white would blend in. With it being black, it should stand out against the white. I almost thought of buying fluorescent orange for the new pin. That way if I dropped it most anywhere, it would be sure to show up and not be misplaced.
I'll post some photos once it is made.
Thanks folks! Much appreciated.