It took Jim Snowdon on the other side to spot my mistake! So much for the so called experts on WT! ( Joke! ). I managed to get the brake cranks the wrong way round on the cross shaft. The great thing about WT and RM web are the helpful and generous folk that you find.
I didn't see any need for the whole 'brick to be inside the tender, so I cut off the rear portion. It made access for soldering the external parts from the inside easier and there is also an internal stretcher to go under the deck in the kit.
The sides are one piece and it takes a little care to fix them in place. I still ended up with slight dimples, it's best to solder around the edges of the panels. There is that temptation to just tack with the iron.. I drilled out the etches dimples on the periphery of the floor flange and used 0.7mm wire to represent the bolts. It didn't take long actually. The way the deck folds up leaves those little gaps round the edge, to be filled, or there might be a strip to cover them.. Traces of Loctite 480 around the scoop and brake handles.