I have an opportunity to buy a '67 GTA w/390 4V that is probably a 5 on a restoration scale of 1-10 (1 = done, 10=basket case). Anyhow, I was wondering if there is anything special about a '67 GTA and whether it's worth going after to maybe make a couple bucks on vs a normal '65-'68 coupe. I'm new to Mustangs so I'm looking for the wisdom of those in the know.