the wilko stakes for their green netting look ok. I've seen some of the like in the store and they look about the right height. I'd go and have a look-see
I got my netting from Omlet but it was £66 delivered. There is an awful lot of it though and it is a faff to get back in the box, if that's what you'd need to do, or you could just stash it
It has smaller holes at the base for bantams