Further to that.....I would suspect the best scenerio would be...

Further to that.....I would suspect the best scenerio would be the best economical size open pit..consistant with the inground tonnage and grade...
with the future prospect of continuation into an underground mine at the same site / vicinity built ongoing as earnings come in.    Maybe another
scenerio would be local / transportable distance producing satalite mines in designated areas feeding ongoing mother pit almost infinitum ?
Maybe too much for the brain to take in, but worthy of debate.......as we wait.             Regards.