bigfella,
I had one of these.
The Freemantle hull is produced in 2 scales by an Aussie Company, APS Models.
They don't have a website, but the last contacts I have are some years old and are:
APS Models
PO Box 5025
Gwandalan 2259
Or perhaps someone from Oz can be of more help.
They sail superbly, but the hull is very narrow from the bow 1/3, so I ended up with my batteries in the stern.
I could dig out some old pics if you want.
Bob