What Pin_guy said....you should be able to open it without removing the display of it is stock.
But color DMD is a great replacement option. Read the threads and there are plenty of videos on YouTube showing off the displays so you can see which you like (LED or LCD). That is personal preference for most so no right or wrong. Yeah it is not the same size as the original display but it’s one of the better options if you need to replace it.
If your display is not having issues and you just want access without having to remove it you need to look at some pictures and fix it so it is correct. Read the color DMD threads and if you have specific questions on Color DMD post them there and you will get answers for sure.
Color DMD is usually an easy install and LOTS of support if you have questions or issues.