Autofill Shelf

This is the PlaceBook Function seen in my other blueprint about Autofilling Shelves. Here I intend to have books from an array fill the a scene component "Shelf" which can be later rotated and translated as needed. My current issue is that the way books are placed creates a series of gaps and overlapping which while not visible at a distance, has discouraged me from adding on the further features build upon it. Such as random book tilting and outward shifting.