Just a tip if you have a scaffold firm nearby, might be worth asking if they have any used netting that they do not want. I was once in a scaffold yard and they were dumping pallet loads of used netting, I asked if I could have some and they said help yourself, I filled the car up! Some was useless but the vast majority was just dusty, I had about 300 metres of useable, if a bit dirty, netting.