Id be okay with that price. Looks like a nice car. Great platform to get started. As others have stated, if you're paying top dollar under the assumption it's all original, then yes a fender tag would be great. Even then, they can be faked? However you look like you got a fair deal. I found my fender tag buried behind my glove box a year and a half after I bought it. I also got the history from a local mopar shop who recognized the car. Said it was in a bad accident and they rebuilt the rear of it, and painted it black. I'm guessing they took the fender tag off during paint, and forgot to put it back.