If I were buying new I would look at FireAde system that will self deploy, similar to a sprinkler system. They have many options but here is one..

https://magsfabworx.com/products/10...ogy-sfi-17-1-cert-with-standard-brackets

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"