If you only have active dry yeast, proof the same amount of yeast in a couple tablespoons of warm water and a pinch of sugar until the mixture bubbles and foams, 3-4 minutes. Add it to the recipe per the instructions (when the instant yeast is added).
This recipe doubles great (I've only doubled it in my Bosch mixer, not the KitchenAid).
Usually with a yeast dough recipe, I give a big ol' lecture about going by the texture and feel of the dough vs the exact flour amount. With this recipe, the flour amount is important - the dough will probably be softer and slightly stickier than you may be used to - try not to add additional flour. Use the pictures and details in the post to get an idea of how the dough should look and feel. Add additional flour a little at a time only if the dough is too sticky to work with.
Just like Gloria's recipe, these baked cinnamon rolls freeze amazingly well. After they've been frosted and cooled, I'll scoop the rolls one by one into a quart-size ziploc bag, seal and freeze. It gets a little messy with the frosting, but once they are lightly warmed, no one notices - they taste as fresh as the day they were made! It helps to take them out of the bag still frozen and then microwave for a minute or so on 50% power until warm and gooey.