The sides drop over the ends as per the plastic originals. These were a little on the tight side so a bit of material needed to be removed from the leading edges of the ends. Because the new sides are less than half the thickness of the old there is a bit of 'bend'. The smart will have extended the floor with lengths of strip. Me, I just wacked a couple of blocks of scrap against the doors with some super glue and solvent. The top edge does need some support, here using a strip of Wills brick sheet. No I don't know what bond it is.
With buffers, hooks and brake lever on I waved some Halfords primer over it which nicely accentuates all the crooked bits and finger marks.
Top coat of 67 and we're nearly there. Just some tidying to do and the questionable lettering. Did the van ever carry large GW lettering, and where did the G & W go on the side?