So there isn’t a specific teardown guide on iFixit, but there is a disassembly guide that shows you how to get to the inner components. @wolphin linked the video for that guide in his answer, but for convenience sake, i’ll link it [guide|112239|here].
Typically, teardown guides are made to help provide information on a particular device, such as what chipset the device uses or how to remove specific components. They also do a good job for providing good disassembly practices and what tools should be used.
If you think their should be a teardown guide for this, then definitely look into making your own guide. [guide|791]