Help Install Tekin ESC

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Finally got my radio and esc etc. to get buggy running after waiting for public holidays and floods etc. Im running a Tekin RS Pro & Futaba R603FF RX. Trying to decide on how to mount them. I had a look through the show me your electronics thread and none in there look like the way I want to run it below. Is it best to have the esc posts away from the motor so there is not so much heat in that area. If I have the RX standing up like below seem to have more room.