i just saw on Youtube,the AT starwars walker project that DJ modified with EZ-B servos, Just gotta say I had the exact same idea 1 month ago when I went into a vape store,the guy had one of those giant walkers on his display shelf! i thought about how to make it truly robotic .So looks like you beat me to it! Great job, I may go back and ask the store owner if he wants to sell his walker to me and follow your project!