@kwackboy - Having re-shimmed a few bikes, I'm amazed that for only an additional hour you can have all four cams out (unbolt 4 x cam caps), pull all the buckets (followers) and shims, measure them, keep everything laid out in the right order, ferret around for eight new shims (measure them just to be sure), replace all the above torquing down the cam caps, check the cam positions/timing (I'd do that twice just to be sure) and cam box covers on.
Are you sure that'd only take an hour?