Looking for battery shed ideas.

I have ~5 acres. Looking to roll my own power plant ~ 700 feet from the house so I can have power without needing to trench that length to do it.

Panel setup is pretty figured out.

I am looking for something small I can house several 100ah batteries in plus the related hardware (controller, inverter, POE switch to extend cameras, etc). I've seen some guys use those deck boxes but I get 40-50mph gusts out here and it needs to be able to withstand that. Anyone have any idea beyond building my own dog-house sized box?