Hero's Iron Gall ink has quite a reputation here so I thought I would give it a shot.
It turns out that it is no longer on Amazon or ebay, but I did manage to find it on a site called ebuy7. I was a little reluctant to place an order, but the checkout was (seemingly) legitimately handed off to Paypal so I didn't have to risk my credit card details and if the ink never arrives I am confident I will be able to claw back the miniscule investment it cost for two bottles.
I'll update the thread if and when the bottles arrive.
If anyone has a more reliable, potentially reputable, source, please do share...
# edit. I found them on aliexpress eventually, but they are a lot more expensive, don't deliver to my part of the world, and that website is such a royal pain in the asset, I refuse to patronise it.
Edited by silverlifter, 24 January 2020 - 05:06.