Overclockers has their stuff in stock, but their social media hasn't posted for at least a year. Maybe ask overclockers?
I believe they're still going, and yeah Justin is now part time there and part time working with a jeweller I think.
From what I can see the website is still very much open. It also has a thing saying they are donating to Covid etc. He's still listed as the MD, maybe someone else is there though cutting the stuff? they also have new products (well, new to me) like distro plates and reservoirs etc.