I took it apart today, and the damage doesn't seem that bad. The circuit board looks fine, the only thing that seems to have burned was the transformer.
Unfortunately, the only transformer s I have found cost more than…"
"You can put anything in it, really? Don’t worry about the wattage. Any amp circuit can be used if it’s 40w or less? If a Smokey can drive a 100w 4x12 cab, then it can drive a 40w speaker, it’ll only use 1w of output instead…"