I agree it sounds like a scam ... but like Quilty-Louise if it was in my neck of the woods and I was interested, I would at least contact him (from a newly created gmail or hotmail account - NOT my usual account) and see if I could arrange a local pickup.
Even if it is real ... the part that would worry me is the free shipping. You cannot ship a machine or a frame CHEAPLY and I would not trust this guy to pack it properly.