Johnson 6hp

[eucumboy]

I am in Australia and have a AJ6BACUD. Its a short shaft. I want to convert to a longshaft. All codes seem to be for USA models. Can someone advise part # for conversion. Can I use one from a 1985 8hp?
Can someone help with model code as well?
A=Aust
J=Johnson
6=6hp
BA= rope start&AC lighting
CU=1987
D=??

[boats.net]

We only have information on US models. Not sure if any US models use parts as yours.