Neighborhood Surveillance System

I am hoping to get suggestions. Our private neighborhood of 9 homes are looking to install an outdoor network system technology to link 3 or 4 IR, HD cameras with solar panels. The cameras will be installed on entry point homes and street lamp pole at the fire road, etc. The cameras are not in the line of site with each other and can be 300-500 ft between cameras. Is there a robst network system you can recommend? We do not want to hire an expensive serveillance company. We will either purchase an standalone internet , tie into a home interent via repeater or satellite and use either DVR or cloud for storage. Any and all suggestions are greatly appreciated