CLA-mining considerations, page-243

So, as feasability $$ blockers or concerns....

Pit mining and deeper sub-level stoping/UG - Probable tick.
Flotation to concentrate - Tick.
Acid leach - Low pressure & heat, very big tick (No HPAL, 1/5 - 1/2 comparable energy investment cost. No Arsenic, low Iron). Add Copper & Zinc circuits.
Transport - Tick, reasonable and typical costs.
Processing to crystal, up in the air for $$ values, but typical compared to others.
Any other major factors?

Massive resource, but how to get it out fast enough from its 4-6m strip? Multiple mine sites to feed a common crusher/flotation plant?