Just before you help Aragon fight go outside of the armoury and to the left side of it there are glowing lights. One of those glowing lights contains the Polished Elf Stone of Armour Enchancement. Save the game and quit and then go back to the glowing lights and it will be there again. Do this 6 times for ALL the characters.
O.K here's what you do. Don't you think it's annoying when you just want to walk around when suddenly Sauron's eye appears in the top left of the screen. The more clear the eye get's, the closer to a battle you get. So here's the easy but slow way through the wild. Whenever Sauron's eye appears just pause the game, unpause it and you will notice that it won't be as clear as it was. O.K so when you unpause it run for a couple of steps and when the eye gets more clear pause it and un-pause it again.