You can use the chain link repair roll to replace any part of your fence. Model # 30870R48. Thank You, Jennifer Customer Care
Yes YouTube will show you
If you're asking what "Tool" is needed, I use a long needle-nose pliers to bend these ties into place securing the fence. Needle nose pliers also fit into the small area to clamp the ties. Your fingers are too large to maneuver around the fence opening and tighten the ties properly.
need to use a come-a-long to stretch
Yes, can be installed anywhere there is a rail/bar to secure them to. If you don't have a bottom rail/bar then no. Would recommend you try putting some tent stakes in place for now, they should hold the fence.
You might look in the garden center where the fencing supplies are . I found some there in a small plastic bag .