So you only care about seeing what is out there, but not necessarily be able to IDENTIFY?
If so, it opens up a lot of possibilities, although most of us start that way and then add cameras to be able to IDENTIFY a perp with a clean capture.
Personally, I love the booby cam AKA as IPC-HDBW5441F-AS-E2 (this is the newest one with AI) or the older model HDBW4231F-E2-M (without AI) as an overview camera. With the right placement and house configuration, you can see two sides of a building with one cam. If the cabin is a perfect square and you can get this camera to face two sides, you could start with two of these.
I would suggest you store video, even if it is just an SD card in the cameras.
And getting cameras from Andy allows you to add and build upon in the future if you decide to do so.