That's a nice config (and price), but since I've never built a bike before I'm not inclined to do so.
I've got all the tools in the world and have built many things and performed a few installs on my cars (03 BMW and 06 Volvo) but I can't risk installing something wrong on my bike that would cause me to crash and damage both me and my bike later on. I've looked at all the components and they don't look too difficult to install, but I imagine some are more difficult than they look. Also there are probably certain torque settings for certain parts or certain cable lengths for the brakes and so on- and I simply don't have the knowledge of these things. Still it's very tempting. Someday I hope to learn these things so I can build a bike someday.