Yes, for the balance ports you are going to need a 3s to 6s adaptor which you can find easily online. As for the discharge plugs, I will use something in my diagram called a parallel adaptor which basically splits your battery into 2 separate plugs, one will be for charging, and one will be for your ESC. I recommend that you use XT60 or XT90 connectors as they are quite cheap, work great, and are foolproof as to connecting wires backwards (positive to negative instead of positive to positive).
Here is the parallel connector I mentioned, it will look like a big blog of XT60 connectors in the diagram though. https://www.amazon.com/Gartt-XT-60-Parallel-battery-adapter/dp/B00KXVW63A/ref=sr_1_1?s=pc&ie=UTF8&qid=1488231170&sr=1-1&keywords=no+wires+parallel+connector+xt60
Im sure you can find better prices and/or better quality parts if you search. I also made my own out of extra XT60 connectors from my build for free.