I just got this answer from DRT-Sport;
1 price only.
If you get 10 or more it will be $245.00 shipped include the new bolt pattern.
This is more than I expected as most sellers are not willing to chop off a third of the price. Anyone interested? We have 7-8 right now with myslef and a few from the SCCOA.
Did this evrgo through? 13 inch rotors with a 5 x4.25 bolt pattern ? can you send me the link thanks ken