From 2012

http://norontresources.com/noront-releases-positive-feasibility-study-for-eagles-nest-project/

Details on the estimated capital costs of the proposed north-south road have not been provided to Noront. However, Cliffs has publically stated that the cost of their proposed integrated transportation system is budgeted at $600 million. This cost is consistent with previous work completed by Noront on this alternative and was used as the basis to establish road usage costs in the feasibility study.

In developing the DCF model for the project, Noront has assumed that concentrate shipments from site and supply shipments to site would be subject to a toll charge. On a proportional usage basis, Noront estimates that concentrate shipments represent less than seven percent of the total ore haulage along the road corridor. The Feasibility Study has assumed a toll representing 12.5% of the total road cost which includes capital, interest and maintenance costs.

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12.5% of 600 million is 75 million...

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from 2016...

https://www.reuters.com/article/us-canada-lockheed-airship-idUSKBN13B2NE

Quest Rare Minerals Ltd QRM.TO will lease the airships from operator Straightline Aviation in the first commercial use deal for the airships, which are filled mostly with helium, said Hybrid Enterprises LLC, which sells the aircraft for Lockheed.

Quest signed a memorandum of understanding with Straightline on the sidelines of a Canadian aerospace conference. The deal between Straightline and Quest is valued at US$850 million, including fuel costs, over the 10-year period.

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That works out to 85 million per year.

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But now that Quest met with some ...problems...perhaps Noront can negotiate for a better deal..than 85 million per year.