I use homemade ladder stands for gun and sometimes archery, I use store bought chain ons mainly for archery.
Build your ladder as high as you want. We use 16' 2x6's and 2x4's for the steps. Lean it up against your house to figure out the angle you want. Screw 2x4's to the top towards the tree and another across the back to lean against the tree. Cut 45's and screw them to your ladder and your platform to help with support. Screw in a piece of plywood on top. We lag ours to the tree but you can use a ratchet strap as long as you have a good base. We've made seats for them and put on shooting rails this year. They are heavy paln your route in and plan on taking someone strong to help.