Ugh, that fourth stage really gave me some grief. Finally got through it with the 0-2-0-3 strategy.
Also, thanks a lot for sharing the info about the gold farming on the stages. That's awesome. ♥ Need money really bad right now. I'm down to 114 coins. http://i.harem-battle.club/images/2016/06/20/VfBGe0.jpg