I used to paint in my driveway here in California, but wouldn't chance it anymore. EPA/AQMD etc.
In the old days I would paint with DuPont Centari.
Hi pressure/low volumn. Now the paint is different,
if the pressure is high, it bounces back. Outside painting has too much dust, and a garage will fog out. I think the home grown paint jobs look like home done. The paint is too expensive to screw up.
I would prep everything and make a deal with Maaco or One Day. That is how I do everything now, and they are perfect jobs. It is also nice to get away from the project for a week or so.