Removing the cams isn't really a diy job, unless you are a decent mechanic. You will need to remove the chain tensioner and ensure the cams are installed in the correct positionwith the cam advance rotated correctly and the camshafts torqued down properly. They are fragile and will break if you just start tightening them down out of sequence. It's not really a bad job if you have the right tools and reference materials.