1. I am looking to make an addon to show the current total value of green armor/weapons in my bags. There is something similar in Zygor Guides that shows the current value of greys in bags. I have no idea how to approach or even attempt to do this so any help would be appreciated.

    BagBuddy, the addon you construct in the first block of chapters, works with item qualities. I suggest you take a look at it!

    i do not have this book though i am interested in seeing this BagBuddy

    You can download it from the chapters section of the website. This website exists primarily for me to support the readers of my books. If you have general WoW addon questions, you will be better off posting on wowace.com or wowinterface.com, where there are more than a few people reading the posts =)