I would not use these ferrules without the proper crimping tool. Instead go to your hardware store and get the type you would tighten down on the wire/cable with a socket wrench or wrench. They are usually sold in the same area where the wire is located. They work great PLUS you can ...
You can improvise alotwith this project. The base requirements are the fencing itself, some kind of support to mount the fence to, and something to tie the fence to those supports. I’ve attached fencing to trees, rebar, and light posts with zip ties, wire, and staples. Sod staples work...