Price just breakout triangle pattern

For me, USDJPY move as correction to forming intermediate wave (2). There is triangle pattern and I consider it as wave minor B. What my concern is if we set buy limit between level 103.779-103.661, so we can get small stoploss at 103.573, and potential huge profit around 150-200pips (I can say that target profit between 105.429 till 105.863).