Building a Cheap HUD for a Wearable Computer?

BJS asks: "I'm in the process of building a my first Wearable Computer. The last thing I have to do in it's construction is to make a heads up display system. I want to have something like an iScape2, a MicroOptical C3, or even this TekGear component, however I'm in collage so I can't afford to spend much. A friend of mine suggested that I find a broken camcorder online and mod the viewfinder. Dose anyone have any suggestions or experience in making their own HUDs? Does anyone know where I can find a broken camcorder or camcorder parts? And finally, what experiences have people had with making a wearable computer? Thank you, Slashdot!"