You'd be surprised, in fact if your just learning then doing fly out and sketchy tricks will take a good toll on the deck. New wheels, fork and bars are a good idea. But if you're just starting you probably won't need a stronger fork, and you can make your bars wider by bolting in a new crossbar.
Also, I hate to be that guy that acts like a dick to the newcomers but if you're just starting you probably won't need an MGP