Very nice account. Here are some PayPal tips for you.
Only accept payment as Gift because if they do try to charge back the money is legally sent as gift. So, you will most likely win the dispute since no proof will be provided most likely.
Use an paypal account that you have your bank account and credit card linked on to make you seem more legitimate. For cases like unauthorized activation or non shipped items. This will increase your chances of winning the dispute since no proof can be used.
DONT'S:
Don't take eCheck Payments.
Don't take Payments from a known scamming country.
Use a OMM for this trade.