I mix equal quantities of toasted jumbo oats, barley flakes, and rye flakes, and add toasted flaked almonds and pumkin and sunflower seeds. Toasting them gives the flakes a really nutty flavour.
On the dried fruit front, chopped apricots and cranberries are good, but look out for the sorts of dried cranberries that are not sweetened, and the dark apricots rather than the squishy bright orange sort. Dried apple is good. Fresh fruit is excellent, especially blueberries, but any fruit you can eat freely, like strawberies, raspberries, black currants...
I was looking for a wheat free (rather than gluten free) meusli, and all the commercial gluten free ones were nasty and way too high in WW points!