Well that was a day and a bit, it took a lot longer than I had thought to get the burnt paint residue out, it sticks like you wouldn't believe even when it was red hot. But it is all painted and ready for it's first session now. I have put it away and won't build it up until the paint, Hammerite for the legs and shelf, and Heat resistant for the box have properly dried.
Looking forward to next weekend now.