here is the image from the link
If the screen is moved up a couple of inches, the lines down to the boot can be re-aligned. Chris said that he had to nip the 275 roof in at the back for Welshkiwis car. This formed the base for the Z3gato, but it will have to be moved back out to accommodate the screen at the top.
So the whole of the back from the roof down to the boot will need re-working. But it is going to be worth the wait. The black surround to the screen is not the best, but needs must if we want to have a stock production solution that doesn't cost the earth.