I had a go today in making the large side stowage bin, I had the white metal casting, but from its shape, it took me a while to realise that it would have had triangular pieces to fill the gaps between the casting and the body, the after market bin also had these infills, not sure why, because when you check out the full size bins, they go right back to the body, and as a stowage bin it would be wasted space; I tried using some 99% pure zinc sheet 1mm thick, for the first time, and this is what I found, cutting is slower than mild steel and brass, and rolled sheets don't bend well with the grain, I read if you cut the sheets on the diagonal then it will bend, but I did not want to waste time or metal, what I found useful is that it does not conduct heat like brass and steel, and you can spot soft solder within an inch of the other joint, and it does not all fall apart, so all flat pieces zinc, and top and front door mild steel, still have the lower box with the two compartments to do, and all the catches.

regards
Jeff