Just Bought a 65 Barracuda that sat for over 20yrs.
Mine set for 30 plus years, last registration according to the Texas plate still on the car was 1992. I agree with getting the engine out and going through it. I had poor compression, lousy leak down results, and no oil pressure, so it was a no brainer for me. Engine should be out in about a month. Replace the fuel system front to back. Do all four brakes and new brake lines. Of course all new fluids. My car is very similar in the fact that it is mostly unmolested. The only item I found not original to my knowledge was the car had the wrong carb. Mine is a 4bbl. Can't wait to get it running!