That is so awesome. Glad that happened for you! I have 100 ft of the permanet right now but will def be adding more over the winter as finances allow. I love the stuff. Congrats!
Seems worth it if the netting is in decent condition and you are able to buy a new charger if/when the current one stops working. That's alot of insta-fence. Score!!
How often are you looking to move the fence? Premier's website has pretty good descriptions of each fence they have and what...
75 for all 4 rolls? Or for each? If 75 for all of it, that is an incredible deal. A 4 year old charger may work for another couple years. 42" could work, but I would be open to the idea of clipping your chickens wings. Just do it to the ones that fly over if/when they do. It is like a haircut...