Hi Mark
Great post!!
The numbers I have ran on both pipes, I come up with a very conservative 1.2m tonnes Cg.
Taking into account mainly the sweet spots.
This is based on 4% for East pipe with dimensions of 150 x 300 x 250m
I use 250m as this is the deepest they seem to be going for the 43-101 as of now
I use 2.5% for West with dimensions of 150 x 200 x 200m
Total 36m tonne ore
With this I have them mining about 50k tonnes Cg year for 20 yrs with Net cash flow after tax of about 250m yr
Take Care