Well, from the white dwarf I have, for Thorin it says:
jacket: Kantor blue
leather: Rhinox hide
Weapons: Ironbreaker
Boots: abbadon black
Fur: Skavenblight dinge
Skin: cadian Flashtone
I don't know about the others sorry, though I would suppose:
(Old paints)
Eagles: scorched brown, dheneb stone
Warriors of Erebor: scorched brown, dark flash, a metal colour
Wood elves: a good selection of muted greens, blues and browns (such as shadow grey, catachan green and calthan brown)
Aragorn: Dark angels green, catachan green, calthan brown
That's just a rough guess at some of the paints you might need to replicate those schemes