Hey I'm a simple kind of Guy... I know that the one location poses special problems /obstacles foe them to overcome but I stand by my previous hypothesis ...given enough time and manpower anything is possible... oh btw, diamond dust or tools made from the same material would do the trick. As far as finding the tools later...we may find them in graves. A tool that valuable and difficult to produce would be a family heirloom, someone could conceivably be using it right now.
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