Since the mystery Wickham kit is made of great big lumps of whitemetal, work starts with some low-melt soldering. Even for a beginner, this would be the best choice, those lumps are to big to melt without serious effort. Since there isn't much in the way of positive location aids, being able to tack bits together, have a look and then move then is a real boon.
Without instructions, assembly is guesswork, although mainly as far as the running boards go. Even I can work out the end to floor relationship!
Apart from shortening the top bars holding the canvas, everything seemed to fit OK and it's all pretty square thanks to a little fettling with the file. I haven't had to fettle a kit in this way for a while and I'd forgotten how much fun it is. When it works.