I feel you...didn't even know Dentelle existed until late last year & had a heck of a time getting my Silver Bat. Call 866 or visit a boutique...they can check stock for all the boutiques in the country & see if there are any more floating around. I'm pretty sure there are still Silver Speedies available. Good Luck!
I know they are available in the Speedy. They are still online lv.com (I think it was $1480.00) If you are really thinking of it, get it before the price increase on Thursday April 17th, it will be about 5% more...
I'm sure there are still things floating around! My store had all both the BH and the Speedy available just a month or two ago, so for some stores I think there'll still be some pieces around.