Well, was all set to go pick this set up this weekend, but something came up to delay it another week.
Looking at the schematic, this will be a real pain to fix, as I hinted, it has 5 6SN7GTs, NOT CHEAP if new are needed, and the lack of info so far, if any parts are needed, no info on the Vertical blocking oscillator transformer or output transformers, and the peaking coils also have no information about them, coils just say “white, black, green, yellow” no H value listed.
There may be a Magnavox service document out there someplace with more details, but I have yet to find it.