This is really neat. Thank you for the write up. I'm thinking of getting one of these kits so just I read it all again.
But I have a couple of questions - if I may.
Are the door handle holes marked or cut out already to the door skin? I must confess I'm not overly keen on the position of the handles. Kind of 'on top' of the door.
I'm sure the position of door handles is to mate up with the internal mechanism so can't be avoided.
Can I keep the original handles? How thick is the door skin around where the original handles are?
I'm planning on a dark grey car so original black z3 handles.
@Dxbolton Are you planning on doing anything to the interior? I think I'd be looking to change to a more 'period' dash from ccw. I know it's nothing like the original 507 but I just want it to kinda feel period on the inside. I think I need to go read the 250 thread to see how that was done.