This was/is a fun project. I am still working on finishing it up so I will update this when I have time.
The biggest note I would tell people making this is look at the drawing for the embedded nut in the lower blades. I didn't see it until it was too late. So what I did was take a solder gun and melt a hole in the side of the blade to slide the nuts in. It seems to work fine.
Other than that I followed the instructions outlined by the design.
Standing ovation to the designer though. This is genuine engineering work that he is sharing for free!