This is an excellent (to my eyes at least) build video.
Another build. He paid $120 for his tubes, bought $120 Grainger table and still completed the build for $615. He wished the instructions gave more detail about how to put the assemblies together.
To summarize it is a fairly simple build that is easy to follow and it has done everything that I have wanted it to do along with being one of the cheaper options on the market."