the link met is similar to the previous main lode met, although...

the link met is similar to the previous main lode met, although it's not clear how much met has been done on the mainlode
you'd want a good spread across the entire orebody to gauge variability - there may be some zones of higher arsenic, which will need managing
it's def refractory - gold is super fine and locked up with arsenic
floatation is not expensive from a capex POV, and the process is relatively simple and hard to eff up
biox is challenging and not really done in Australia. managing the bugs and digest can cause big problems just look at wiluna back in the day
albion is not really done in Australia either. Both biox and albion are higher risk, and will make financing (perceived risk) more difficult

if i had a crystal ball, and this project was going it alone, the floatation will be prefered. there is nothing easy about this project, if RR cant make it work then its probably effed
look forward to the study numbers. the MC will need to be a lot higher to attract finance not sure what mechanism will achieve that.
M0ngy and his many accounts take with a huge amount of salt. His technical knowledge is zero and posted is highly skewed to positive bias ignoring important facts. He actually does more damage to RXL cred than good.
DYOR
GLTAH