Thanks for posting! I'm pretty sure we can help. Also don't apologize for removing the parts from the windows, that's an enormous help for us. I would start by looking at our 26-366 pivot bar, which looks very similar to your design.
I'm less certain about that pivot shoe. You have an older style that's no longer made. Can you tell me its width and thickness? We have a bunch of different shoes compatible with the 26-366 that I think can work, but it will depend on size.
Ah, perfect. That shoe looks like our 15-046. If that worked, then I think it's a good bet.
As for the spreader, you're 100% right: sometimes older vinyl windows have a risk of breaking. The cut out method, in that case, is usually a safer bet.
