So a couple of parts have started to arrive, nothing that I can assemble yet but it's exciting none the less. I will lay out everything I have so far tonight and take some photos. I will only be able to start assembling end of next week, that's when the base mount should be done. I also have to design and make a tool for cutting custom GT 2 pulleys because I found that I can't source exactly what I want and I'm not prepared to compromise the design. It's quite a small tool because the tooth radius of the pulleys is just 1 mm so I'm probably going to have to wire cut it.