Novo's Ann Tonight, page-144

SGS
A continuous three stage crushing plant with a capacity of approx. 3 tonnes per hour.

NOVO
Five tonne samples will be transported from Karratha to the test plant, where it is expected that up to 3 samples per week will be processed, with an expected 4-week turnaround time to receive grade results.

I'd say that would be the Max time frame which is half as much as before with NAGROM

As for PPL saying they would be shifting only five tonne a week to Perth is ridiculous
Whatever a semi dog trailer/ Roadtrain could move  into Perth at a time ...