Thanks for the info hesh, I would say if there is 25mm behind it and it is clear in the same way as the 2 doors are there is a very good chance that the same standard of finish can be achived. I would think it could be finished in the same sort of styles as well, carbon ,painted and clear.
I would like to get my hands on one just to see if it can be done ,but i would like to have a good look at how it fits to the car before having a go with one off someones pride and joy.
If you know of anyone that has a spare one knocking around i would be happy to buy it from them.