I had a similar experience when arranging the purchase of a D3 STD tail tidy for my
MS S1K. Over the few days I was liaising with Darren, he was under the pump, super busy in his workshop and was not able to check his emails regularly.
Aside from the above link from 1000RR Bahrain, you can also try contacting him through his ebay store.
All I can say is,
keep trying because he
will get back to you and he was extremely helpful (and patient) with some of my sillier questions and a pleasure to do business with.
Believe me mate, when you do take delivery of the tail tidy, you
WILL NOT be disappointed. They are an absolute work of art, I kid you not.


Cheers,
Andy