I am actually avoiding adding mobile Mining things or Quarries to GT6. They just dont fit the logic of going out there and actually building Infrastructure that lasts, simply because you set up the Miner (with a Chunk Loader) and leave, and when you are back you tear everything down again.
And by the time a Mobile Mining thing would be available to the Tech Level, they would be massively outperformed by the Bedrock Drill regardless.
I want people to actually think about how they acquire their Resources, and how they build the Infrastructure around it, so things like a Quarry that you only need to move sideways every once in a while, really do not fit that.