I need to execute a 2 year timelapse.

Location with be 3 cameras in pelican cases atop telephone poles in the middle of a field.

I plan for each DSLR to fire 3 frames each day.

I'm thinking about using an eyefi mobi card with a verizon 3G android tablet in a pelican case.

I need remote access to the photos and be able to check that all 3 cameras are still firing periodically.

Has anyone tried a timelapse this long before? Trying to minimize maintenance over the 2 years as much as possible.

Thank you in advance!