you get 5 bch for 5 btc, which means, you can sell all the bch for $6500(5x1300) and still keep the 5 btc.
thank you. Messed up with the math
You clarified everything for me. Is it possible to buy BTC for BCH? As I understood, you can sell 5BCH for $6500 and buy BTC for that amount of money.