Right then, here's my view.
I also have a 53/10 limited. One of the UK stock. Only 6 came to the UK, two in each of the colours. I guess if one is outbound then it only leaves 5 left here in the UK!
Anyway, mine also has green over the side dots and fret ends. I've always thought it was corrosion since it also doesn't cover every dot or fret end. I also don't remember seeing them when I first got the guitar, but I can't remember now. I am a little surprised about the dot markers as I would assume these were stainless steel, the fret ends I'm less surprised as green corrosion would be oxidation of the copper from the nickel silver alloy. However, I've never thought about it too much. It certainly looks to be green corrosion to me, rather than glow paint (I'm a mechanical engineer), and I've never noticed them glowing in a darkened room. But now that it's been mentioned I'll give it a try when I get home from work tonight.
What I can also say, is that although it's a satin finished guitar, mine certainly has lacquer covering the fret ends and dot markers, so you won't be able to remove the staining with wire wool without also removing finish. In fact, my neck is now fully gloss from use so you wouldn't be able to tell that it was satin finished at all now.
Honestly I would just leave them as is. I barely notice and they don't bother me at all. It's just patina to me, the same as when your nickel covers and bridge start to pick up a patina. The 53/10 limiteds have vintagy feel to them so it doesn't detract from the guitar.
I would love to hear all about it when you get it though! Looks like it's in great condition (still looks very satin so it doesn't look like it's had a lot of use). I think they are lovely guitars.
