Would anyone know about the modifications required to the rear bodywork on a Sapphire Cosworth 4x4 to fit coilover's. I know the space is tight and only the slim shock absorber fits in a standard set up with the spring located in the middle of the trailing arm.

I would still like a standard interior, not roll cage set up etc, how much bracing would be needed to add strength to the top mounts and I can appreciate the top mounts need opened up to accommodate the coilover set up, and a strengthening beam fitted.

I'm looking for a great handling car and would like to know more about the 6 degree beam conversion and what stages that can be taken to.