I was just curious because if your going to pull the cams to change some of the shims, you might as well install the updated cam chain guide.
They are called
blade,cam chain, rubbing,PA66. part number T1142055
blade,cam chain Tensioner, Alu part number T1142048
I would also have the gauge, cam chain Tensioner part number T3880068
the gauge can be omitted if you can measure with a caliper of depth micrometer and you can make the spacer instead of buying it. If you do not have these abilities I would buy one and keep it. If it does not need to go in then I would take it home and later on you might need to add it as the chain stretches. Now in the kit they also changed the lower crank gear. Mostly the early 04 and 05 models needed it. I have seen a bunch that were alright. I think they replaced them because they got into a bad batch that were not properly heat treated and the key way wallered out. Again Yours might be just fine. They also changed the clutch springs with part number T1171201. I am not sure what they cost but since the front is open you might as well change them. The good thing about these springs is I have a extra set if you want them I can drop them in the mail to you as I will never use them. I might also have the cam chain gauge I can also send. If you need the spacer it can be made from the shank of a 10 mm bolt. The shank or spacer should be .393" in diameter .355" long.