The fundamental unknown as I see it is the amount of funding...

The fundamental unknown as I see it is the amount of funding required to bring an assessed deposit to full production.
As Kiwi noted, PLS has just consumated a finance deal for A$133m. Now these are Bonds with a stated rate of 12%.
And PLS has said it will need another funding round to balance the capital cost of the Pilganggoora project. So it will surely take some time before their shares start to show any reasonable increase in value. However I think that I am going to get my feet wet and go for them based on a long term view.