The Portland Oregon Craigslist has an ad under sporting goods for the stakes and sets of the camo net supports.
I have purchased stakes from him before and he is good to deal with. He owns and manages an RV storage yard and he and his brother got a pipe of the stuff as they had storage room.
I am trying to get a deal on some camo net support kits for use with wall tents but he wants a bit too much for them.