'd also love to see pics of the CB2/IB3 mounting in Ferrets, particularly if they don't use the "universal plate".
I wouldn't lose sleep over it, I am sure in a lot of cases it was like uniforms, it fits where it touches. I.e. stick it where convenient and your cables fit.
I have the universal plate but the bits and bobs on it are positioned to suit myself, that is as a driver operator; not something done in service.
My 321/352 setup is also unusual and I have the orientation of the 321 to suit me, not as per the official instructions.
03BB33 Mk.1