I don't know why I hadn't looked at that before but two things do not make sense to me in the mining plan. Doesn't really effect the feasibility of the project just more a side piece.

1) Why use a winz? I know there is probably a requirement to reduce the surface footprint as much as possible but using a friction hoist and head frame would probably be much more cost effective and have a negligible footprint. Is there some reason why they can not have a head-frame on surface?

2) Aggregate (waste stopes), I have never heard of a mine producing 750 waste tpd from waste stopes. It sounds nice on paper but the waste stopes don't pay the bills so will always be a lower priority. I could see temp tailings holding facilitiies on surface then start pumping paste underground, using a low cement binder there should be almost enough room in the stopes for all of the tails.