Andy. I may or may not live somewhere in the Essex area. But I can neither confirm nor deny this
The problem with the 1.0 is the sheer height of the engine block and head. The caterham install has a custom Dry sump but still adversley affects the COG and roll centres of the car. More work needed.
Incidentally, Radical use the 2.0 turned up to 330 BHP with no ill effects on reliability

You wouldn't believe the hours or POWERZ that have been seen on test rigs