Yes yes, that's all nice and lovely talk but the problem you seem to overlook here is that the payment methods you offer are reversible. PayPal is even reversible up to 180 days. It doesn't matter if you offer to pay 5, 10, 15, 20 or more %. The main concern here is the risk of payment later being reversed.
Don't get me wrong... you will certainly get offers here but they will mainly come from newbies and bought accounts who will insist you send payment first. When you do, that's the last you will hear from them.
As for trusted members with impeccable feedback and trust ratings, none of them will send first. Count on that. Even if you offer escrow, I doubt they will do this. The risk of payment being reversed after you get the coins is a very real one.
Hi, thank you for you suggestion. I’m only have this 3 payment method available. The rates to fund dollar in this 3 payment method is the cheapest in my local exchange. Perfect money and neteller is irreversible I think.