[Mondial]

Regarding question #2, the mini brown tubulars and the bulbous brown types with the color dots are both ceramics and like the micas which you have already identified, need not be replaced. These are small capacitance value (pF)caps and are used as either RF bypasses or coupling caps in tuned circuits.

The other small wax covered components look like they might be inductors?

As far as #4, the single white wire is the FM antenna. The AM antenna loop is connected to the terminal board and it seems that the black antenna wire connected to the broken terminal strip with the mica cap.