Here are some pictures of the finished product.

Obviously you can see the steam line (which I will replace with a black one when I can get some black tubing) but overall I think the installation is quite unobtrusive, especially the resonator, which is crammed between the regulator and the gas valve (handle supplied by Gremlin) and painted black. With the lid shut, it's not so easy to see at all.
And here it is on the outside:
Perhaps I've over-done it with the decorations on this engine, but it is the "shed pet" after all... Rule eight!!!









