Just to let it known and say thanks for being a great help Mark 'ginger ninja' has been with my swapping from a ZX9 C to E engine. Really appreciate his advice. This forum is great for getting help and info. It is now running, been out in it this morning and all seems good, that is until I run out of petrol!!!

Big job? Is there any advantage performance wise over the C engine?

Don't think there is any different performance but the gearbox is modified and I have done two C gearboxes so hopefully this E one will last! Will let you know.
It is pretty much a straight swap but you do need the E ECU