One of the earlier proponents floated the idea of a private haul road and that went over like a lead balloon with the FNs. Unless the policy has changed (and not considering any federal involvement which always complicate things), if a road receives public (provincial) funding, it has to be open to the public. This would be similar to the Sultan Road between Chapleau and Hwy 144. It is open to the public on a 'your own risk' basis and normal HTA rules such as vehicle dimensions don't apply. It was also up to the company (E.B Eddy at the time) how and when they maintained it.
The full length and breadth of FN consent is yet to be hammered out.
I am also so ignorant, and I don't recall ever seeing tonnage/production rates for the project; which isn't surprising as it is proprietary information. I don't recall any of the proposals saying that they were intending to build a concentrator on-site but, then again, they didn't say they wouldn't. It would require mor energy on-site (something else that I don't recall being discussed) but it would certainly reduce the amount to be hauled out vs raw crushed ore.
The trick is to provide enough product - in one form or another - to keep a mill/refinery operating efficiently. Depending on the mineral and process, a mill/refinery can be fed from multiple mines. The output of Kidd Creek near Timmins is rail-hauled (concentrated) to Rouyn-Noranda to be processed along with products from other mines. The golden ticket from the RofF is chromite, and I'm not aware of any other chromite mine or refinery in Canada let alone Ontario.