I have been using the 3M PPS because of its ability to paint in all directions (gun upside down), but had to order the larger cup size.  I ordered the largest kit to ensure I would have enough paint to spray the outside and inside of the shell at once.

I have also been researching about painting in my garage and found a few threads…  Venting Paint Fumes,  Compressor in same vicinity, and spraying epoxy in garage.  I have ordered a ventilator to blow the fumes out the window, and will open up the door to the upper storage level of the garage which should pull in enough air.

I think I am about ready to spray the primer within the next few weeks.  Hope to get some garage time in next weekend.