Ivor's Buffer Beams: So Many Options

Having, put a base coat of green on Ivor I started looking thinking about painting the buffer beams. A quick glance at my standard reference work for this project, my childhood story book, and it quickly became clear that I had some decisions to make. The problem is that Ivor's buffer beams aren't coloured consistently throughout the book. From a thorough flick through it looks as if there are two options for the front and two for the rear.

If we look across those three photos then you can see that.... for the rear buffer beam it's either red (as you might expect) or painted green the same as the body. For the front, you can see that while the front and sides are always red, the top surface is sometimes left green. Looking more closely I think the more common options, across the whole book, are for the front to be all red but the rear left green so that's what I've gone with.

Of course it's also the easiest option as it meant I didn't have to try and get a perfectly horizontal masking line on the rear of the loco as there is no line in the etch between the back of the coal bunker and the buffer beam.