Nice! What kind of thermal paste did you get? I wrote a post about thermal paste recently. It might be helpful in your project. Using an SSD for the operating system should help it run faster. What CPU did it have? Make sure to use anti-static wrist straps when you handle the ram, or cpu (like have to remove it or add a new one). Cable management aka tying cables would help keep things organized and make cleaning a little easier. I found this post as a resteem of peanutbot.