Yep! Tough one!!
Cam1 & Cam3 both were Stand-Alone cameras, but as described above they each had their own challenge. The wireless version of Cam3 would be perfect if I can find one for sale somewhere not shady. It's advertised as "Stand-alone device with built-in CPU and Web Server" which is perfect. Trying to avoid having to keep a computer running & sucking up energy when a camera can be on for just a fraction of the energy.
Know any other models that fit? Or where to pick up a wireless version of Cam3?