@doctorwho2 Have a look at this link in regards to an acid plant...

@doctorwho2 Have a look at this link in regards to an acid plant for some research.
PARADIGM MINERALS USA CORPORATION RHYOLITE RIDGE LITHIUM PROJECT PRE-FEASIBILITY STUDY

Sulphur would be imported to site and that (over 50%) of acid being recovered by KRR from the solvent extraction stage of recovering Iron, from what I gathered.

It is good to have someone with a PhD in geochemistry from one of the top 10 universities in the world (which university) on board, and look forward to your wealth of knowledge in your comments in your  field, which will be a massive asset for a layman like myself.

Some links for people to check out and research for themselves in regards to sulphuric acid.
H2SO4 Process 2018
Manufacture Of Sulphuric Acid By Contact Process Year 2010
Technologies for Sulphuric Acid Production
http://www.sulphuric-acid.com/sulphuric-acid-on-the-web/COM2010_Acid_SC1_Plant_Fundamentals_Louie.pdf

@stumpjump having people like @knotnauti and @Yak52 who have worked up in that area is good as any information regarding your questions could be answered by either of them, or at least give you another route for research. Sharing information amongst other like minded people (KRR shareholders) can and will be beneficial to all. Here are some links for you too.
Port of Wyndham
WA - Key Freight Routes (Rail)
SHIRE of WYNDHAM|EAST KIMBERLEY
As @knotnauti has already mentioned it would be easy depending on route they use to get to the Great Northern Highway. Looking on Google maps as the crow flies, direct around 80kms of dirt to the highway.


My comments/posts are based completely on my own experience thoughts and interpretation along with my current financial position at the time.
Conduct your own due diligence, consult a licensed financial advisor or broker before making any and all investment decisions. As usual all constructive criticism welcomed.Good luck to all that hold.