Brake vibration is 99% of the time attributed to pad deposits building up, only takes the tiniest amount to make itself felt on a proper caliper setup. To warp a disc takes a phenomenal amount of heat/abuse.
DS2500s for example are well known for causing this problem.
Not trying to **** on your plans, just with that amount of power and those Audi brakes having form for being woefully inadiquate, don't flog the others too soon.
Contact DaveB, he deals with ProjectMu/Endless stuff.