Radiator didn't fit. I'm planning to get one of those custom aluminium racing radiators from the US for Christmas, will stick with stock for now. New thermostat and electric fan kit are in. Changing the diff is proving to be a big job, the front suspension of both cars is completely in pieces at the moment.
David Wiltshire turned up on Sunday and took the front windows, motors and heater control module. Nice bloke, told me he was thinking of getting a Cayenne but would still keep the VX because he likes it so much. I'm going to store as much of the parts from the car as I can in my garage, including all the remaining glass, so if anyone else in the UK needs a VX-specific part hopefully I can help out.