McIntosh Tube Amps, How Durable are xformers

Hi All,

Just purchased a MA-230, untested & unknown condition, no tubes.

So will need new tubes, obviously, Ps and bypass caps almost a given. My concern is the spendy transformers.
Worse case scenario: one of more transformers might need to be replaced. An equiv power transformer is available at some electronics supply houses for aprox 100, what about the output transformers, with the center channel tap it's not a off the shelf part from digikey etc.

So question is am I creating a problem where one may not exists or are the transformers known to fail easily if a tube dies?