Ok, here goes, I've exhausted my searching abilities and only found ONE hub that fits the bill. Lets see what others can add.
I am looking for two front disc hubs for the trike, the specs are as follows
6 bolt disc
12mm axle (can be 15 or 20mm with converter parts)
Would prefer Black hubs, must be the same, to keep the weight balanced on both sides.
What else can I add? I think they should be 100mm wide, but not 100% on that, because they don't have to fit into anything apart from the brake pads, there are no drop outs.