Thanks guys. It really suits the lines of the car, I wish it was the standard nose fitted to all the zeds. ATM it's a whole lot of white but the stainless/chrome trim should break that up a bit.
John, I am thinking of using one way screws on the covers. Would hate to loose one!
Simon, I'm going to try weight saving door handles I did see a drilled style that Magnus Walker uses on his Porsches. I've already done a mock up and it looks nice and quite different from the regular plain handles.
Here's some old handles I did a rough trial job on.