I hear you. Fire codes around here are rapidly moving targets, some places more than others. I notice that Oakland and Berkeley seem to have recently gotten religion over fire code enforcement. North Bay got it after Santa Rosa, and down here soon after that. Our recent roof required 1/16" slits with screens, and a 1/4 covered peak vent.
We have the same issue and 140+psi fire pumps seem to be as rare as hen's teeth and pricey to boot. Plus, I would want more than a dribble at the top of the trees...If you find one, let me know.
Lucky you.
All the best,
Peter