I'm looking to build a remote observatory in Arizona sometime in the future and I'm trying to put together a list of everything I'll need and also the costs associated. One of my main concerns with a remote observatory (in a nearly endless list of concerns) is security and durability of the housing. A wooden frame with wooden walls can easily be penetrated by bullets or pretty much anyone that wants to gain access. I know a lot of lighthouses out on the west coast have been shot at since they make very nice targets when they're the only things out in the middle of an open area, so that's where a lot of my bullet concern stems from.
My main worry with cinder block walls is their ability to hold in heat from the sun. If they can hold enough heat and dissipate it throughout the night, that could definitely affect my seeing and make it very difficult to get quality images. However, if the heat from the walls will dissipate within an hour of the sun going down (before astrodark hits) then it shouldn't be much of a problem. What are everyone's opinions on this? Are there possible mitigations if the heat could be a problem (such as sheet metal siding to reflect/absorb most of the sun's energy)?