Update:
I recieved my Traxxas ESC mount and added it to the Losi. Some people use the existing holes in the Losi battery tray, but when you do that the ESC sticks out too far and hits the body. Any blows to the body would be transmitted directly to the ESC which could cause a malfunction. So I mounted the ESC more inboard and turned 90 degrees. In this configuration the body cleared with no problem.
