Wireless, portable, cloud recording security camera solutions for vacant properties?

[Owen Dashner]

I am looking for a camera system that I can move from vacant property to vacant property as needed.  The properties will be under various stages of construction, will have electricity on, but will not have traditional internet access.

I am looking for something where I could possibly either use a portable wifi hotspot or 3G streaming to a cloud-based DVR type setup that I could access any time using the internet, and would have large enough storage to hold (at least) a week's worth of video, and would have night vision and motion sensing technology, and support multiple cameras for different sides of the house.

From the research I've done so far, it seems like most wireless cameras like this require a static IP address (i.e. a portable hotspot would not work).  Anyone have solutions they can recommend?

Verizon is my current wireless carrier, and I would be using this setup in and around the Omaha, NE area.

Thanks in advance!

[Don Harris]

@Owen Dashner Not exactly what you are looking for but DropCam ($175) is a great camera but needs an ip address. Why not establish internet at the site, set a wireless router and set up to 4 dropCams into the space. Minimal,"Security Expense". You can turn on/off and monitor remotely via phone, ipad or desktop. You can subscribe for "cloud recording" that will store up to a month.  You can even Hear and talk back through the camera if you needed to talk to a contractor on site and see what they were observing at the same time.