Ann: Wolfsberg Project Definitive Feasibility Study Results, page-423

Well actually DRA's process is for everyone to view in the 107 page DFS, it doesn't address some questions but it aims to inform a financier (i.e. bank) that the due diligence in their investment has been backed up by rigorous assessment of future market conditions. When a bank reviews a DFS it is meant to provide them with the relevant information as to why their invested $ will be safe and match the indicated ROI %.

On the point of uniqueness, you are spot on about various projects being different, that is the exact purpose of a BFS/DFS is actually bringing a set of normalised/standardised metrics to allow for a fair comparison between various projects/ventures (i.e. NPV, ROI, CAPEX, OPEX etc). Largely banks do not care what your project does, they care about security of their funds and payment/returns schedule. If the project is too risky and does not provide the returns well...look at the news, SVB collapse is a good show of lending into high risk ventures (amongst myriad of other things that gone wrong).