Hey Guys,
Many thanks for the replies. I can see where the majority of you are heading with the swap, and without getting out the schematics it makes sense!
But I have got some good news. Not long after my original post I placed a call to the RTA to query it, and the guy told me it was OK. So I then called the blue slip guy and told him of my findings........he is still adament that the brake light and the indicator light cannot be one of the same "bulb filament". Anyway I pass on the RTA guys name and ask him to make contact.
Well anyway after a day of back and forth between blue slip guy and RTA guy, it has truned out that the original setup is OK. Apparently the RTA guys took a vote and it went in my favour 4 to 2.........it's a grey area, because simply the legislation does not say that it cannot be this way.
So HAPPY DAYS, it's good to go as is!!!
Thanks again guys
Glenn