rear window awning; little parts

[funkill]

Last night I removed my rusted, *secondary support* arms from my rear awning. This is the little wire-like bar (maybe 3/8" max dia) that clips to the main arm when the awning is retracted. When the awning is open, it rotates down and rests in a bracket along the window frame to hold the main arm in place/down.

This must be a steel part - as it's pretty heavy duty and very rusted. Any ideas what to replace it with? Stainless? Course the cap nuts just fell apart too.

Also, one of the plastic clips that holds it to the main arm is broken (and I'm betting the other one is pretty brittle and will go anytime. Any ideas what to replace this with?

Neither of these parts are shown on the Zip Dee window awning parts detail.

Laura

Here's a picture that I tried to capture the arm and the plastic clip - it might be just a tiny bit out of focus. You think?