Adkart is "right on", ISO's are deadly. You need a rapid changeover of air, or a forced breathing air system. A cartridge type respirator will become saturated fairly quickly. When you start to smell it through your cartridge respirator you have already breathed in a large amount. IMO a box fan used for air exchange is woefully inadequate. The smell will permeate into the house no matter what precautions you take. I did all the premiering on my 34 in my garage and that alone told me that painting it there was out of the question. You also must take your neighbors into consideration also. Play it safe and rent or borrow the use of a paint booth for your health and your family's peace of mind.
Remember also that your lungs are not the only thing you need to protect. Also cover any exposed skin and wear rubber gloves.