What ventilation equipment should i get for my grow. ++Rep++

Hi. I am gonna buy some ventilation for my grow. I have black/white poly over the door of a closet. About 2x5x8=80cu. ft Need to exhaust and bring in fresh air. I also have plants vegging in the room out side the closet. I saw a pc type fan that was 105 cfm. Would those work for the closet if i had a squirell cage blower on the window? Im just trying to get an effective system for as cheap as possible? Any advice?