Where do I find blue led bulbs for dash backlight?

I ordered a set off eBay, had my man remove the dash soon after, returned them as they didn't fit, received new set, eventually met up with my man yesterday and - wouldn't you know - they don't fit either…

So, 3 weeks into the process, has anyone got any good ideas about where I can order these on the procrastinet? Or better still, buy these off a shelf?

I figure it's hardly a major mod for my super shiny (just washed and headliner-cleaned at last) sapphire blue GTI cabbie 1987/E, so it remains pretty much original…

thanks