what i did a few years ago was i went to a couple contractors i knew and asked them if they knew where i could get my hands on some cheap 40 foot aluminum ladders for sale and i found a few that were around 100 bucks each and seperated them so i ended up with 4 20 foot ladders and use them. they work great. i took some olive flat camo paint and sprayed them down and they are perfect. just throw em up and use a ratchet strap at the top to secure it to the tree.