this could really be turned scam.  we know the word trustless means that we don't need to learn who the person behind the other end and he still gets the coins. but this time this is going to be no trust. there is no way someone is going to send $9000 to a stranger that can just say he dropped dead after receiving the money.

arbitraging is good. so why don't you just buy XRP from another exchange and sell it to the Korean exchange? not matter how small your funds its still la gain for you since the transaction fee of XRP is way small.