Thanks.
I've asked Carbonda to supply a headset and two different covers so when I get my fit sorted out properly I can have everything tidied away as is the way now.
one to allow internal routing and the use of an ACR like stem/bar combo (C2)
one to allow internal routing and the use of external cable bars and stem (C3)
Just waiting for some "here's your bike sprayed in the way you want it" pics.