Hello and welcome to the forum. The video you posted actually outlines the concepts pretty well.
What questions do you have specifically? Do you know how to solder or is that what you are seeking help with? Or do you need more help with assembling the control panel?
We can help but more specific questions will help us to help you. Also, read through the forums, use the search, most questions you have are likely already answered. I would specifically recommend reading through the Project Announcement forum. Those threads often have a lot of step by step photos that double as a tutorial.