Marvin window crank

I have old Marvin windows that I am trying to service (circa 1980). On one window, the crank arm is "twisted".. and I have no idea how because that thing is solid. So when the window closes it forces the cover wood out and the window does not seal right. I need to replace it. The cranks you have on site seem to be double lever connecting to the gear housing. Mine as seen in the pictures attached has a single lever connecting to the gear and the second level that connects to the window is separate from the gear assembly.

Any hope of you having this part?

thanks a bunch in advance.