@Criggie they've had them previously.

I generally check a couple of times a year to see if I can persuade myself to upgrade my groupset myself, then I talk myself out of doing it...

this might be the time I actually do it now, I've done bottom bracket replacement and reindexing the derailleurs myself, those are perhaps the more daunting bits (does anyone have a full job list needed for a groupset overhaul?)

Honestly? For the cost of a whole new groupset I can buy a new bike with the same groupset fitted.

Why wouldn't that be true? How would anyone afford to buy a bike is Specialized couldn't buy a groupset cheaper than you?

I remember several years back when Specialized release a Allez aluminum frame with a Dura-Ace gruppo slapped on for no apparent reason. They accordingly didn't sell well and after season they could be had for several hundred less than a Dura-Ace group. The shop bought several and shop rat fleets were accordingly upgraded

Anyone heard of radsport-erdmann.de ? Found them on eBay, they seem to specialise in Rohloff (and other) wheel building. Seems from what I've read to be a specialised pursuit.

Nope - anodising seems to be a speciality too

Anodised plain black or silver would be nice, but the sparkly colours seem a bit bling.