18" Stainless Steel 2 Bar Hinge Set

Had a piece rust off that allowed window to slide. Need to see if I can replace this

30 year old Lincoln awnings, Truth hardware. In the photos, the awning arm is 18", part #40023. My question is regarding the black plastic track guides; 1) Are they available?, 2) Are they an independently replaceable part, or does the repair require replacing the awning arm (hinge) complete? ... (cont.)

Need the bar that goes from sash to frame. The one that has bent in the pictures

I will need additional parts, the vertical pieces for hinges right and left are 17 inches long The diagonal slideing pieces are 10 inches long each. Would also like to replace the latch parts if possible

Might be for a Velux window out of Home depot, rusted, no longer seems to be stainless steel. Any help appreciated!!