-You can use half whole wheat pastry flour or all whole wheat pastry flour for a toothier crust.
-Any kind of apples and pears will work, just stay away from an excessively watery variety like McIntosh.
-For the fat in the dough, you can use vegan butter, coconut oil, neutral oils (grapeseed, sunflower, etc.), or olive oil. I often use a combination of oils. Coconut and olive provides a nice combination of texture and flavor to the crust.
-I tend to like my desserts on the less sweet side, so if you have a sweet tooth, go ahead and add another Tablespoon of sugar in the sugar and spice mixture. Oh and by the way, coconut sugar or brown sugar are both wonderful substitutes.