Random spawning papers, plus GUI texture book help.

For my game I am trying to make it so that the player will collect items from several locations in a forest that will spawn randomly from several preset locations.

When the papers are collected a book will appear as a GUI texture. After each paper the book will become more completed, and when all the papers are completed a chapter will form, and a new level will load. Each level will have pages that will compose chapters in the book. Once the book is finished, a new level will load.

Can someone please help me out with this?