NewsW wrote: Given the cost of brand new rotors.. I would have just got new ones.
350 rotors are as little as $70 a piece.
Expect 450 chassis rotors can't be much more than $150
If you can get cyrotreated ones, they really work well.
I have an older E 450 chassis but on mine the rotors are part of the hub and are about $350-400 each. I had the same thing happen once and never did it again(yet). I also have a steering damper.