Pity I had other things on my mind at Portsmouth (Freezing Bullfrogs and bend bottle-shutters).

And yes, it looks to me that those pictures are from a pristine HDPE machine with spraypainted steel parts.

SamO, if you have the weight left for 4mm mild steel, you could go for 4mm Hardox. Enough of that stuff going around to make a scoop from. And it's a worthwile investment.