so to recap. what do you need to do it? aluminum,wood,screws n bolts, cutting and drilling tools, motors,actuators, springs,pvc pipe,,tripods,some kind of controllor, a lot of spare time, and a beagle with some duct tape! i used to build rc cars and can tell you that model grade servos are a bitch. but with the automotive customizing revolution came tons of company's offering affordable electric actuators. i have a project underway in my car for a motorized trunk lid. lexus used the cheapest trunklid struts known to man and they gave out so now i have a yardstick to hold my trunk open. this prompted me to look into actuators. i found a company online offering 150 lb lift electronic actuators for about $100 bucks each. they had all sizes down to like a 3" extension. and had a line of high grade servo's too that i just glanced at. there is a large market for hobby robotics and with that plenty of company's making all kinds of fabrication materials. i have always had a fondness for film making which started in the early 90's when i was a daily skateboarder my friends and i lugged around a 20 lb vhs camera in a suitcase to film our skating. these days i dont even own a camera but i always keep an eye out for a good deal on a 3chip. if i had the $ and the time i would be looking into making indy films. and the first thing on the equipment list would be mocos and dolly's home made of course the only way any indy film maker can do it. look at robert rodriguez. the man made el mariachi with like $ 7k in mexico and ended up being 1 of the elite hollywood directors. so if i ever come into a sum of cash i will take you up on that challenge.