Hi David, I believe there was only 6 RHD HGTC 575M's made. And of the 246 manual (3 pedal) cars 69 were RHD. Not sure if there was a RHD 575M HGTC Manual made, but if there was it would be my Holy Grail Maranello.
I looked at two of the 575M HGTC RHD cars both were Rosso Corsa and F1. One of them was a Northern Ireland (UK) car that had been in an accident in its early life and had been repaired with full Ferrari certification. I believe this one was sold to Australia a year or so ago.
The other one I have seen was an Irish car which I believe was sold into the UK a couple of years ago. It was Rosso Corsa with Nero and Rosso striped seats, red carpet etc.
Can't help on the the four.
Current Fcars: 360 Modena
Gone but not forgotten: 360 Spider, 575M, F430.
Other stuff: '71 Holden GTS Monaro, '80 BMW Alpina B9, '74 Porsche Targa, Caterham, MB CL500, Land Rover Discovery.