Craig,
I don't have one available, but make sure you get the upgraded De Dion, we have broken two of the older style! The new ones have thicker tubing, eliminated the through the tube shock mount, gusseted the other shock mount tube, and better looking welds!
My recommendation, from having had two break in a race, go get a new one, put corrosion prevention (like WaxOil) inside of the new one and you have eliminated a failure point.
Oh, we have broken a front spindle also, and I watched my son's front wheel proceed him down the straight away at MSR Houston, put the upgraded Caterham front spindle kit in or at least the Dave Bean spindles!