Today I have managed a little more work on DC975280, with a coat of filler applied to the door joints and window blanks that were filled yesterday.

While that dries I have moved onto DC975081.  This is a much more involved conversion requiring chopping up the side to move windows around (plus a window from another side). I am sure I have spare regional railways mk1 sides somewhere (left over from TPO conversions) but I haven’t a clue as to where!   I know I gave some away but was sure I kept at least one pair.
 At any rate I have found a spare mk 1 in a stock box which will do for now (and likely would eventually be TPO fodder anyway).

the first side was stripped before cutting into six pieces (of which one was scrap). The end section was drilled for a cab window (for which I am using a spare DC Kits etch). The window was drilled and cut before cutting the side (to preserve strength in the plastic) 

before gluing the side back together I have filled the 3 redundant windows, once dry tomorrow evening these will be carved to shape, before assembelling the coach side.  Then it’s onto the other side (which needs even more cutting)