I've now made and fitted the guard irons to my 08. They are of 20 thou nickel Silver (for my convenience) which I profile milled with my little Proxxon pantograph, having laser cut patterns twice the size. They are epoxied on to the back face of the frames. The rear ones are very straight forward (albeit 1.5mm shorter than the front) and just require some very gentle beale to align them with the rails. The front ones however, are obstructed by a pair of misplaced air tanks, which require the guard irons to currve tightly around them, before bending back in over the rail. The deviation doesn't notice in reality - only the final location over the rail head.
On the whole, it is a job very well worth doing, as it fills out the underside visually.
The loco frames have also had their initial weathering, and I have added a little basic brake dust around the brake shoes. It will get more oil, rust and brake dust.
The screen wipers I painted with metallic gunmetal, which improves them. I also laser cut templates to go over the windows with holes in for drilling guides for fitting them.