Miss represented 383 GTS

I found this Dart on Ebay, notice it says 69 GTS 383. I wrote the guy to let him know that by the vin number it is a 1968 and a 340 p code. just to let him know and to avoid a hassle if he sells it. His answer?
"I never said it was numbers matching"
What the hell is up with that? I know he is trying to pass it off as a N code original 383 1969 GTS DART. Just look at the buy it now price?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=200515717876&viewitem=