@thekingmeta use [link|https://www.youtube.com/watch?v=_zaQVY2wu58|this video] as a guide for that. Not the easiest job but doable.
While you work on your Fire 7, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.
Repair is War on Entropy!