So I just purchased the IP2M-853EW and didn't really think through where/how I was going to mount it. My house has vinyl siding and I really didn't want to have to drill through the siding.
I ended up finding a 9" ceiling mount (PFB300C) / with a screw in adapter (PFA111) that fits this camera's collar. I screwed it into a block of wood between the soffit joists

