WOWZERS!!!!!!! An incredible quilt, this is!
Is this a Bonnie Hunter pattern?
Borders .... I would go with #2, with a few changes ......
* Make the gold border narrower, as in #5
* Broaden the rust/outer border
Binding .... go with a flange binding in rust, and the flange in the green (or is it a grey?)
Sitting here stunned with your quilt ..... the colours just happen to be "my" favourites, so it calls to me all the more!!!