I'm looking for a security system for a house we are building with 6 outdoor cameras and 2 inside cameras (preferable PTZ inside). I will be installing myself and will be using cat6. I would like to purchase a NVR that can support up to 4k cameras (for the future). I would add the cameras over time and want to ensure I purchase a good NVR (Priority one at this time) Most, if not all my viewing would be over my android phone or another another mobile devise. So what is a good 8 channel NVR for under $750 that can handle a wide range on cameras. TIA