1962 Valiant Suspension/Brake Swap Options with other A-bodies
Hopefully this will get you started, but I've never messed with a first gen Valiant. I'm sure that as you get into it, you'll find out some things that I haven't covered above.
I clicked on Blue62Val's link (#3), which, among other things, goes into the various differences from one year to the next on the early Australian Valiants. And that's an interesting history by itself. They are so similar to early US Valiants, but then they are different, too, in sometimes unexpected ways.