I actually have a batch of about 20 brand new PCBs sitting here on my desk (in NZ...). I redesigned them when we ran out of the older version, so the new ones are now all Surface Mount components, which are assembled at the PCB manufacturing plant - which means I don't have to hunt down all the individual components, and just need to program them, wire them, put them in a box, and test them.
I've done a couple of tweaks on the circuit aswell, and tested one of the new ones on my key fob reader, and BECM test bench (I did ship that out with me, so I can hopefully start doing repairs again) and they work perfectly... also the new cases I can 3D print, which works out cheaper than buying loads of them.... and if I run out... I can just print some more...
If you've still got my email address, then drop me a message and we can work something out. I've recently looked at the shipping etc for them, and it's about £15 for tracked courier shipping from NZ to the UK (I'll check Europe), so a bit more than it used to be when I was based in the UK - though I'm not putting the price of the filters themselves up anytime soon, as they are (in theory) now easier to make, so take less time, so less labour cost.
I am hoping (before I get busy with work) to assemble a bunch of them, get them tested and have them available in the next week or so on the website, but I can do one-off orders at the moment until I update the website/shipping etc via email/paypal.
I am also going to be in the UK end of March - end of April, so will probably bring a few with me aswell.
Also look out for a workshop 'help' thread soon as I need to get rid of that whilst I'm over on this visit as the lease comes up in May... and I've got a lot of stuff to ditch, and some extra hands could be useful if people are available!