Hi all hows it going?

Right on to the subject,
My Brother has a P plate Mondeo 2.5 si which he would like to convert to 4x4.
He has been offered a 2.0 si 4x4 for spares and is wondering if anyone has converted a v6 mondeo to 4x4 before,
Any advice would be greatfully recieved.

Many Thanks
Shaun