Yes, Firebird the tuner and remote are good to go. It was made in Sept 1977 in Indiana, NAP must have closed the plant right after that when they moved to Tennessee and continued building the same good (at that time) stuff.
The chassis has a video issue that is NOT solder-related. That and a failing CRT caused me to junk this after 18 years in my living room(s):tears), I do not foresee getting another Mag like this, as I have narrowed focus to older stuff 'cuz I like tubes so much (plus I have a ton of them
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PM me with your location.