have you tried summit or jegs?
can always ask on my v8 forum if you want to mate.
i made up a patch lead for the a/f-egt gauge today so it can go through the bulkhead with the other cables, i hope by making this extention cable it don't effect its workings,
also made the cable outlet hole on my gauge pod bigger to allow all the cables from the gauge to go through,
i made a sleeve sheath up to keep cables tidy from pod to behind the dash.
will put pictures up before the weekend,