Making my own toothbar project

I wanted a toothbar for my tractor, and the purchase price of one was not too hateful ($150), but the shipping was outrageous ($92 more).

So I decided I would make my own toothbar. I wanted to make one like this:
Or one like this:


But I do not have any way to bend one inch steel bar. So I will have to stair-step it down and weld it together. I made the first tooth:


And then I tried it for it:

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