See New Riders stickies. I wouldn't recommend that and you're considering two bikes in completely different categories with very different purposes. You will be totally unable to use the latter in its intended state for quite a while.
Dragging knee is for the track, and dragging tail is for the lot. --Kane Friesen
When you're in a car, you're watching a movie; when you're on a bike, you're in the movie. --Robert Pirsig
Identity theft is not Fun