The DFS is due out this month, hopefully within the next 2 weeks - it will answer all your questions.
In the meantime, have a look at
http://www.ytcresources.com/public/documents/4/11/110713%20YTC%20Resources%20(YTC)%20-%20Site%20Visit.pdf
Pleae note they assume Gold price US$/oz 1000 and Copper price US$/lb 2.50 in the long run to get to their 0,76 valuation - way too conservative ...