TAC letters

[rupert condick]

hi
i am having trouble find the history of Austin K2Y ambulance (1941) British WD No. A1207004, Australian DD no. 1207004, as it served with 2nd AACC after arriving in Australia in early 1942 from North Africa? ( due to the desert paint)
the air compressor was modified to 1 inch square drive in NA.
there is a white diagonal line on the drivers front wing, ---7/N the N is not too clear other numbers i cannot make out, N is also a 2nd AACC mark which should be painted on the passenger front wing.
2nd AACC records are missing at the AWM. and the DD number is not listed. 10 other Austins used none standard DD numbers.