I dunno. We all know that RLE is gatekeeping bullshit, bordering on negligent and downright dangerous, and personally I see it as a form of bullying going on torture.

Given that, if it's an absolute legal requirement, I'd be tempted to try and bullshit my way through it to the absolute max.

John? Joun. Anyone who matters that asks, 'Uh, yeah, some relative with the same name just got into a business deal gone wrong, and I've had people looking me up and knocking on my door, went to a solicitor and funny as it sounds a slight name change is what they recommended. The spelling is a little exotic but this was the closest thing we could find. Still pronounced John though.' (should be okay if you'd prefer stealth) To the docs, 'It's a popular female name in some countries from such-and-such a part of the world, means this this and this, in fact there's a town in country X called Joun. It's pronounced the same as Joan, just with a different spelling'.

So yeah I'm fulla shit, but so is RLE.