i2oss,

You are on the good path. As you noted you will need to buy a few tools. No biggie. The headset would be an issue if you lost something. Otherwise, you should be able to pull up an exploded view online and easily figure it out. As for the BB. Well, the only reason I would say your LBS is that BB's are one of those things that the bicycle industry has decided not to standardize. So, there are about 9,362 BB removal tools and they all fit exactly one BB. In the end, probably best to stop by the LBS for headset and BB work. The rest is all you.