I had one of these muppets hit me on a car I had up on carsales. Sent me a somewhat odd SMS which stood out because it had a UK IDD code on it. When I sent an email back to find out what the deal was it was this freight forwarding crap and he wanted my details so they could "arrange an inspection". He then asked for the link to the ad claiming his computer lost it after an update - which to me said he was just spamming every ad on the site looking for hits and now needed to find it again. Why someone would want to buy a sight unseen stock standard commodore and go to the trouble of shipping it to the UK raised red flags as well.
Probably the best response to one of these scams is this:
The Powerbook Prank: He wanted a Powerbook. We gave him a P-P-P-Powerbook!