Got a reply on Friday to my enquiry. I was surprised with speed of the response.
Anyway the general feeling is that the RMS has no problem with the conversion due to the vehicle never being built as a RHD car, as long as all is right and the relevant procedures are followed.
The problem is depending how the Import Approval is worded,(IF IT SAYS MUST BE CONVERTED), this may create a bit of an issue. So into the archive boxes at home to go through 22 years of crap and paperwork so I can see how it is worded. Baring that I have to contact the Dept of Infrastructure etc etc, to get a copy of the approval.
Not out of the woods yet!!!!