Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Skimming the head is not too problematic but carefull with the block as skiming reduces the depth of the O ring grooves, which is actualy advantageous as head gaskets are thicker than they used to be so for standard blocks thicker O rings are needed.You may find the valve timing very slightly out due to chain length