What transfer case are you running? The 1.4 might help off the line if you are in traffic a lot.
The larger intercooler may help some, but usually is accompanied by IP tuning.
Disco transmission ???
Exhaust mods don't hurt, but what size exhaust do you currently have?
Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)