You are correct with your above assumptions, all of the above...

You are correct with your above assumptions, all of the above intend to be mitigated by having a semi-permanent camp and some degree of backup redundancy (EG 2 ore sorters just to start, likely more later). Mining will continue year around, ore will be stockpiled and some workers will live there for extended periods of time. Similar to how things occurred at Polaris.

In my research I found the sea lanes can remain open as long as 5-6 months.

As for finance when capex is this small and opex won't be that bad (grade is very high) I would assume they plan to start the DSO during a window where they can sell the first batch and retain that cash for costs during the next period. I anticipate cashflow being high enough to not be an issue. And if the DSO operation is already set up, bridging finance is an option and there will be no shortage of firms interested in such an operation at that point.