Barry, is there a particular scene file (from the CD that came with the book) that would be a good place to start in matching the GH13 (all mine are set on nostalgic with no other changes)
You can't do it off a monitor. At least not the gh2 - it doesn't show colors accurately on it's monitor output. Maybe the gh1 does but you had better double check by bringing footage into your nle and comparing side by side.