building a decline, page-7

Mal: "I expect a lot of planning and some exploratory drilling will be done before deciding the exact path of a decline."
Would a fair portion of this likely have been done already or would we know about it already if so?

Mal: ?the costs run at $5000/metre or $5 mil per km??? the length would continually increase as they mined out areas until they got right down to the deepest levels.?
What sort of meters/kilometres would we need then initially?

Mal: ?Mott Ryan used to hold world records for speed of decline headings?
What sort of meters per day are we talking about here, without new records needing to be set?

Trying to gauge the earliest this could all be in place after the Gekko unit arrives June, if they were to announce intention to proceed say sometime before/after end of this month.