Whenever I found something to be a bit tricky, I went back and tried it a different way, until I found what appeared to be the easiest method, at least for me. And that's what I documented.
The text points out what I consider to be the trickiest bits. None of them are very bad. I think this is a really good design.
Perhaps the most important idea is, don't break stuff while you are trying to assemble the machine, and don't hurt yourself. Go slow, don't apply a lot of force to the plastic parts or to anything else, file things down or use the other tools mentioned to make things fit.
My documentation is fairly complete now, but was only finished last weekend, so have another look if it's been a while. The guys at Deezmaker have had a few days to look at it now, and haven't pointed out any really severe mistakes, so maybe there aren't any. :-)
You've had your machine since NY Makerfaire? Some of the parts have been improved since then. Write to Diego and remind him about the missing parts, maybe he'll send you some new improved parts at the same time. He can also send you the current Bill of Materials for your model. But don't expect a quick response, as all the Deezmaker people are really busy right now, packing and shipping.
I hope to power up my printer for the first time this coming weekend. Will take more pictures then.