Broken pop up gazebo for spares (Sale M33)

I am trying to repair a broken gazebo. I think it's 3m x 3m but I'm not sure. It has grey legs and other metal parts and the plastic bits that slide up the legs at the corners are black chunky plastic. I've attached photos. If anyone can help I'd really appreciate it as it's such a shame to dispose of it if it can be repaired.
Thanks in advance.

       
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