I concluded the previous blog entry on this subject by saying that the next job would be to fettle the Perseverance frames to fit the Hattons/DJM body. These are the frames as provided on the Perseverance etch:   And separated from the fret:   The 'topography' of the underside of the Hattons/DJM footplate moulding called for some initial modifications to the tops of the Perseverance frames:   Further adjustments were subsequently made, particularly with regard to removing additional met