I'm glad I saw this thread, and I'm glad that my McMaster-Carr order is the only Hadron order I left open as I decided what parts I needed to machine, and what materials I'd need to make those parts. Now I get some better parts and don't need to build them myself.
I wish I had seen the Hadron in time to get one of the kits, because at this stage, procurement will probably take more time than building.
I'm kind of obsessed about my ORD Bot build.