IQ5 install in a commercial storage building/shop

I’m working on an alarm and video system install for work. Looking at utilizing your business plan for this.

I’m trying to cover 2 building with 1 panel since they are less than 75’ from each other.

The main panel would be in the new admin side with the wall closest to the next building which is a shop. The doors would have sensors and we would have 2 motion detectors and 1 heat sensor and one remote panel in there. It says 2000’ open air but I know things can cause interference.

I was thinking of the possibility of a range extender if needed but DSC PGP9920 isn’t listed on your site.

Also I wanted to get the PGPx934P PowerG + Indoor Pir but you don’t have it listed either.

Just trying to see if it wouldn’t work between the 2 buildings. If not we would have to get 2.