An other solution might be to move the mining to the village.
We have found a pretty much infinite source of oil under Pyrlix's house, which we can use to power some quarries that we hide underground. If those are made large enough they can mine quite a long time before needing to be moved.
Only issue with underground quarries is that you need to clear 5 blocks high for a pretty large surface, but that's something we could use the turtles for.
If we combine that with a properly made buildcraft pipe system, pretty sure we can setup mostly automated metal block fabrication, and use that to make more advanced industrial craft stuff.
And since a lot of people seem to want to move there, the chunks are going to be loaded most of the time.