I am willing to provide my ID too if it scares you that much.
That won't help in the slightest. You need an ID + selfie + a note held up in front of your face authorizing the specific transaction from your paypal e-mail to the seller's paypal e-mail if you want to actually remove (most) doubts.
Other than that, you can build feedback on non-reversible methods first and then work your way up to pp trades.
Or go on virwox.
Or deal with some of the traders on here that deal with new people for a 20+% markup to cover the potential loss.