Sulcata free range thoughts

Greetings all,
So this past warm season I changed out my tort habitats.
I went from a 100 ft x 7 ft block enclosure with a divider to 2-20 x 20 foot welded fence with proper hides and shade systems for my 2 fair sized torts.
The welded fence sections are the stuff you can get at Home Depot that are strong and look real nice when welded to properly anchored metal post.
Being that this is a temporary system I secured it by hammering down some rebar and using heavy zip ties to join the sections.
Well my torts are stronger than that and they can knock the sections down.
At first it really scared me.
But then they would not leave the area.
They know what time food is served.
One of our best friends let’s her 20 plus inch tort free range in the summer and it seems like an idea that would work for us.
They have a couple acres of well fenced yard.
We have 3/4 acre of the same.
Kinda scary to let them roam but it seems like it would work for the warm season.
They get fed like clock work and know it.
One is about 14 inches and one a lot larger.
Thoughts?
Thank you.
Andy