I slightly modified the design of the spirit burner to include a few more bolts for good measure, and then turned up a miniature oiler. Now working on getting the model running smoothly and will post a finished video soon!
Here is the small 'cooling fan' assembly, together with the flywheels and frame pieces all painted up. The close up of the fan brings out all the finish imperfections, but it actually looks pretty ok to the naked eye. I found that part quite tricky to make.