of my head, sorry) you need a straight sided roasting tray, mine's about 14 inches by 10 inches, and an inch deep. line with silver foil, pop it into the oven.
add half of the oats. stir in until well mixed.
add fruit. make sure its chopped finely and well mixed. stir in well until mixed.
add seed mix, keep adding handfuls and mixing until you think there's enough in.
add dried fruit, same thing, keep adding until theres plenty in. sorry i can't be more specific, but in my mind i just add until i think "that's enough now."
once its stirred and well mixed, add the rest of the oats gradually, mixing as 