you can order RRS and Kirk L-brackets from a very reliable german dealer:
I have just received the Kirk L-bracket for the 1D X from them. It is of course a perfect fit and comes a bit less expensive than the RRS version.
I have ordered many times from them and it has always been a fast and perfect deal.
I forgot to add:
Their website is best viewed in Firefox. I always have trouble loading the website in IE.
thanks for the input. I checked the german website and they do have both the Kirk and the RRS bracket in stock, but the RRS is definitely overpriced, it's 285 Euros! If I order one from RRS website and have it shipped to my brother in NY and then my brother sends it to me in Italy I think I would save at least 50 euro.
Thanks anyway, I've bookmarked the site for future reference!
Whenever people agree with me I always feel I must be wrong.