Very, very nice - I spec'd up a Roadster online last week, more out of curiosity than anything, but basically identical to this, even down to the Chili Red mirrors and red Colour Line, but minus the stripes, and with the Recarro seats. Not sure if I could actually justify the added expense for the seats if it came to the crunch (second choice would be exactly as you've specified), so again - very nice.
Only thing I would change, and this goes for all JCW
spec cars, is that I think the front grille surround should be black (as per earlier second gen JCWs) rather than chrome.
Congrats on easily the nicest Roadster I've seen thus far.