Hi, first of all congrats on a GREAT mod 
I'm a huge fan of miners and I usually try to make one or two asap. By the time I've got four going on the cave where I put them is usually VERY long (I like moving them in straight lines) Normally I put some rails and a container-cart in it, but having to move it from one place to another, load it, unload it... can be quite tedious. I seem to remember you posting something about adding robots to the mod some day, so I propose adding a helper robot to it. Add a torch-like item for the robot to make stops and perform simple tasks (unload/load for example, depending on color of placed "torch") Maybe even add an object to set a time interval between each "torch", or make the robot "intelligent" so it waits for a machine to stop working before unloading it or the box next to it.
Cheers
PS: i've been looking into your code as i'm trying to learn minecraft coding in my free time, and man are your variables difficult to decipher 
Just saw the programmable robot idea, pretty much the same as what I had in mind. Sorry for the inconvenience 