Hi Jez,
Smashing paintwork, I have done a few 86's now, although my 2 latest ones have the jumpers and the hi intensity headlights, as there were at least 3 loco's in repainted in blue after their refit, there was 86257 and 86402 and I think both kept the livery well into 1989. There are others but I don't have the numbers with me. The blue you have used is a touch faded, but by 89 who knows (I'll admit to the same blue on mine!!)
Keep up the good work.
Dave