2 yr time lapse

Hi...

A company wants us to do a 2 year HD time lapse and a sequence every 3 months of the construction progress. At the moment I think stills is the best way to go. The problem is the actual place where we will do the shot is a 2 hr drive from us so looking after the shot will be difficult.

I am wondering if anyone has done any type of shot this way and what kind of advice I could get regarding it. I am really not sure about any of it... like software to use, powering of the system over that time, how to get the shot sequences without disturbing the cameras etc...

I am researching Stop Motion Pro at the moment and perhaps laptops to capture the images but thats where i get daunted! any advice is much appreciated...