This is my first ladder stand, I have no plans, just the picture.
Veed boards, a turn buckle and chain hold it to the tree.

I have a couple of pictures of my Electrical Conduit Ladders stand on my Hunting Page: http://webpages.charter.net/fam-strick/web/hunt.htm
They were really cheap to make till the price of tubing trippled. Many hours of welding!