I spoke to a mod plater in qld about a year agon now.
I told him 240's came turbo'd in the LHD market, not RHD. Reason being the steering column is in the way of turbo outlet but can be overcome with custom downpipe.
He asked me about brakes, I said they were the same between turbo and non turbo. He even wanted some kind of written proof though I explained there is nothing written effectively saying there is only one type of brake setup.
I spoke about aftermarket management and he wasn't fussed.
Lastly, he said he wants to see a cat on it, and all work undertaken needs to be at a high standard.
That was about it. Though that was only a discussion, I haven't followed through with an inspection yet.