Disassembly Question on Dell E6530

I recently got a Latitude E6530 from a friend and I am looking to do a screen upgrade. I already researched it and I have to replace my screen and the LCD cable to upgrade to 1920x1080 since mine is currently 1366x768. I already found the correct parts. I usually like to have a video to reference when I am disassembling a new machine to make sure I do not miss anything. I found this guide below for an E6420 and I have a few questions.

1. Are these machines similar enough where the guide would be interchangeable or are there major differences in structure?

2. Is it really necessary to disassemble the whole machine? It seems like I should be able to thread the cable through the hinge but I have not taken enough of it apart to really tell if this is possible.

I have taken apart many laptops so I am comfortable doing it if I have to, but I also like to take the lazy way out if anyone knows a better way then taking out the whole motherboard.