Working on building a homemade box blind. the platform is already built. about 12 feet in the air, looking for tips/examples on how to build the actual blind part of it especially the windows. Will be used for mostly bow hunting but also rifle hunting. Has everyone built their own windows? buy them premade? I see they have some premade ones online for blinds but they are pretty pricey by the time you put a couple windows on each side. Thanks!