ArtMetal

I just sold my first piece (the female torso), and also the very first time I've sold anything on ebay.
I'm a wreck! The Buyer lives in Galveston, right down the road from me. He's included his phone number as contact info. Do you think it's advisable to contact Buyers directly, via telephone. I know, dumb questions, but I am a very cautious (and anxious right about now) person. Should I just oil it down, or ask him if he wants a protective finish? It was advertized as "raw metal, unfinished." I know, stupid questions!