So you want buyer to pay 700$ and he/she gets 500$ per day from it?
- Why are you selling it for 700 if a person can make 500/day out of it?
- Why are you asking for loan if you make such huge amount off this, doesn't make sense please explain.
It doesn't make any sense no matter how you look at it.
The scam is simple , he will try to convince you to use a "trusted" escrow , most likely a bought account on this forum
A legendary goes right now for 100-200 , he will scam you of 500 , profit done.
Your argument is invalid because he clearly states that you can use the escrow of your choice, not one that he provides.