After further consideration, I'm going to stop being lazy and build a system more specific to my project. It will come out to about the same price and I can have better control of the speed and power. I found a inexpensive 86" linear shaft and bearing off craigslist. Using the basic design of garge door rail system, I'll use a chain to drive the bearing up and down powered by a 12 or 24volt motor. Throw in a speed controller, power supply and a momentary switch and call it a day. short, sweet and simple...
what do you think of one these
motors. Scroll down.