Thought I would share a way to get CO2 system for under $200.00. Everyone in this hobby is looking for better cheaper. I know that I have a lot more than I should into my beast. I went to a keg beer place and bought the regulator and a used 10# tank for abot $120.00. The mounting bracket came from a welding suply place for $20.00. The hose, quick connects, and air chuck from home depot for about $30.00. The regulator is a little larger than the one you get when you pay $430.00, but to save $200+ i'll deal with the size. My 72 blazer has plenty of space in the back.