The SCAM you may be concerned about goes something like this: A "courier" for the buyer shows up at your house to take delivery. They give you a check for more than the purchase amount and ask you to go to the bank to cash the check. The extra money is for pay shipping cost and the courier's fee. The bank cashes the check, so you and the courier get paid and the bass is taken. Later the bank puts a hold on the check, so you get to repay the value of the check and get stuck with whatever fees apply. You also loose the bass.
AFAIK if you sell using a commercial PayPal transaction, the payment is secure. This does not apply if you use friends and family. However, I think there is still some degree of risk as PayPal seems to side disproportionally with the buyer in regards to forcing a return on the seller's dime. If you ship to an address in Oregon, AFAIK return shipping will be from Oregon.
Perhaps you could ask for the Paypal contact info and then call Paypal to see if there are any red flags before invoicing the sale. Sending the bass to an address other than the home or business address associated with the Paypal account may be a significant red flag. Per Paypal the shipping address must be saved to the buyers account before the purchase.
I think I would probably pass, but that doesn't mean you should.
