Just use the old race to set the new race and be careful not to get it too off center when it goes in or score the race surface. Otherwise your fine. I've always set mine like that.
Toyota usually has equivelant $ on reman calipers. rotors can be turned by carquest or napa unless they are too thin.
I can stop by one day after work and show you how to set the races if you want
oh.. the knuckle studs cone washers use a brass punch to tap on the studs. The cone washer will loosen right up.(you know, right before they shear
are you using a knuckle centering tool to put the new knuckles on your 40 housing?