Wow, those tires are only fit for burning! I put on shinko 712s and have been quite happy with them. They are korean made(not chinese) from yokohama molds. A pair is just over $100. 130/90-17 rear and 110/90-19 front.
I really like my stock bars, they feel made for me. Ride with them a bit and see how it goes. There are flatter bars, more pullback, higher, all sorts of bars.
Tools mentioned apes, some people do not like apes cause their arms fall asleep!
Best thing to do is find bikes that sit similar and have different bars and see how it feels.
The ride IS the adventure. The destination is just to get gas!