I would suggest that it is worthwhile studying the 43-101 within the context of what we now know.
In particular, since the 43-101 a few things have changed that have significant upward bias on the valuation.
1. % of nickel has been improved from the 1.6% in the 43-101.
2. $/lbd of nickel has increased from the $9.08 in the 43-101.
3. resource has increased - (note that Capex shouldn't increase for additional tonnage but the marginal cost by the end of the projection period is approaching 50% of revenue as mining is more expensive than in the early stages of the mine)
All in all - these updates should result in over a 100% increase on NPV from what was in the 43-101.