http://4unitmaths.com/angelfiremirror.html this website has all the papers from before 2000. Good luck, the paper is a monster towards the end.How do you gain access to the 1989 paper? Is there a link?
For internal marks in general do they just take into account your ranks and fit them to the hsc marks or actually look at the marks you are getting? Because I am the only one at my school doing extension 2, so I will be first no matter what.Pretty sure you need 95+ Raw for a state rank but it also depends on your internal mark.