Yeah, I did the same thing to the wires on the 600. It's a pain, but pays off in the end. As for the temp wire, I would put it around the motor where it mounts to the plate. That is where most of the heat is going to be. I'm not sure, but a lot of the larger ESC's will have a program, such as Castle, that will monitor the heat in the ESC and display it in a graph. As for the voltage, I would monitor it from the Rx. I don't think the telemetry can handle 12s or whatever you are running on that thing. I would just stick with what the Rx it putting out. You may check the manual though and verify if you can check the main pack voltage. If you can, then you could possibly wire up two sensors for voltage. One that gets it's reading from the 3 wire plug going from the Rx to the TM1000 and the other that is just the two wire, and solder that to the ESC leads coming from the battery. Again though, double check if you can do this and not blow up that telemetry module. That would suck lmao.