Thanks for the reply Craig.
The real issue with the installation is the size of the S/S transducer, at approx 250mm long it is longer than the distance between the transom face and the motor leg so it looks as if shadowing may be an issue with respect to its performance on one side.
The lesson here is not to be blinded by the potential savings available and forge ahead thinking you will make it work. I got the set up for something like $700 off RRP I should have done a bit more research and perhaps gone for a Humminbird unit with similar capabilities that has a more conventional sized transducer funnily enough it would have been about the same price as the discounted Lowrance setup.
I hope that there may be a member that has done an LSS-2 install they are happy with and can give me some pointers.