I would go to your local shop and talk with the people there. just ride it to the shop show them what you got and they will be able to guide you, if they are decent people, if not go to a different shop.......buy the stuff and if need be a couple of allen keys and figure it out. this is a very simple task and once you start tearing the bars off you will have realized
a) how easy it is
b) how to put it back together
Cheers!