Sorry to hear about your troubles. Just a reminder that fuses are notoriously "slow" in electrical terms. With advanced electronics the damage can be done well before any fuses blow. Breakers are better, just. One of the reasons the more capable surge protection schemes rely on a combination of things like MOVs and Diodes.

Another thought {rare} for the return of the radio is that caps that got overcharged coming back down normal operating range?

In any case, good luck with the tech and let us know what they find.