I've done a fresh of my installation guide on slideshare following some recent experience. The guide now covers both 8.2 and 8.2.1 and includes some additional notes on silent installation and dealing with situations where you are compelled to install for all users (i.e. ProgramData is used). The guide also covers installation of the smallest amount of Cygwin gcc compiler chain, plus comprehensive instructions on how to verify that everything is working as it should.
This helps people who are installing for my training but also may help others. For example, who want to evaluate the product.