WIRE from pop-up tent or pop-up game (Blackwood)

I'm looking for an old 'pop-up' tent (or similar!) that we can get the 'high-tensile wire' out of, to make an opening in a cosy dog bed/sleeping bag!

So, it doesn't matter if the tent is damaged, or if you have an old 'pop-up/twist & fold down game' that folds down into a 'circle' as it's just the 'wire' we are after!!! :)

Happy to collect from Blackwood, Flagstaff Hill, Reynella, even up the freeway to Mount Barker as we make regular trips up that way! OR from Blackwood, down through Mitcham, Unley, Burnside etc up to TTG, Modbury.

Thanks!