Get the business account, they you can accept credit/debit cards
The fee now a days is 3.5%
Link and verify a checking account. I would also suggest you go to a different bank/Credit union and open a "Paypal" account to link to, this way if hacked or spoofed, they can only do so much damage and your primary account will be safe.
Also use the print shipping on paypal, that way tracking is added automatically to the transaction they offer UPS and USPS.
You can order USPS Priority mail, and flat rate boxes for free and have them delivered in your mail for FREE