I have successfully made a few small molds with one simple tool, a paint pressure pot. When I make the mold, I cure it under pressure rather then using a vacuum pump. I went to Sears and bought a 2.5 gallon paint pot, air regulator value, and a quick disconnect for my air line, and a ball valve to open and close the air pressure to the pressure pot. Maybe a total of $100 spent on it? I don't have any pictures of my set up, but I'm sure others will. Have you read Burl Rice's article in GR? Oh most of my molds have been one sided molds, so I'm not to sure how this set up be with 2 or 3 part molds.