A very nice score indeed! I suspect it's likely newer given the brakes. IIRC, there weren't any chainstay brakes until 1988.
I'd love to find a Mt Hood or Whitney in my size, and make a LHT styled tourer.
Some oxalic acid will have all the rust off and parts sparkling.
Thanks, not a bad score yourself. Do me a favor, if you're going to post a bike here, could you clean it up a bit?