You should really read up and learn how to build it yourself. That way if something goes wrong with it you can fix it yourself and not rely on anyone else.
Trust me, once you get the hang of building a Genny, building anything else is really, really easy. Its really not that hard as everyone makes it out to seem, just a little more fiddling required.
Also make sure you read up on battery safety, be familiar with ohms law, and all that other good stuff if you haven't already. Its pretty fun when you get the hang of it.
Best of luck! You'll enjoy the kraken, I sure do love mine.