I've been wanting to do a tutorial video for mining as there are a ton of things to consider when building a rig to save money on the setup and get the best efficiency out of it. If you know how to build gaming pcs or the such then you should be able to figure this out. There are just tricks you pick up along the way like being able to use cheap platinum server power supplies but none of it is really hard to do. Just do the research my friend.
A ton of people like to make their own frames and i have done this is in the past but for me the materials cost more than buying the frame i used in my builds. It is aluminum and has tapped holes for almost everything with a box of hardware that has extra screws and everything you will need for a pretty damn good price.