Agree, but somebody needs to put +3 billions to make it happen. 

You are looking at it all wrong.  It's $4 billion to make it happen and its still wildly profitable at that cost. 

Before allocation for overruns, the 2012 Schaft Creek Feasibility Study showed a capital cost of $2.8 Billion.  It should be even less than that now with the cost cutting results of a near 7 years of optimizations.   

The other $1.2 Billion (minimum) goes to buy out Copper Fox for taking all the real risks and then exceeding their obligations in delivering on a Bankable FS silver platter a very profitable and completely de-risked mine including a mining district in a safe jurisdiction. 

Plus we had to needlessly endure 7 years of Teck abuse and lost revenues from earlier production or lost opportunity cost from being stuck in a worthless stock.