Here is mine many thanks to village idiot for his help. It is very easy if you can solder you can build this harness! These pictures should show exactly how to do it.
This picture is of the harness end, the group of wires on the right goes to the battery and the group of wires on the left are from the trainer jack.
This picture is of the overall harness, I am using a 2S lipo connected via the JST connector.
Works great flew my F86 this afternoon with it.