I just got through making a Genesis for a friend. You'll need to buy a set of 7/8 handle bars. The 1" ones that come on it won't fit the throttle.
The front motor mount is a little bit of a challenge. The down tube is slightly bigger than 1 11/16".
The stock gas tank will need some help fitting the big crossbar. I was able to mcgiver a mount after a little hardware store stalking.
I used a Pirate Cycle adapter without problems, but it's a tight fit because of the extra spokes. A 36T sprocket will be a little tall, but you'll probably have 40 mph plus top speed.
Luckely for you, Power King motors have the big rear mount, so it fits the seat post tube alright. Everything about the Genesis is big. If you're about 6'6 you'll probably like the size of it.
Here's a picture of the one I made.