SMPS Replacement

[Poroit]

G'day Members,

For the past 10 years I have been repairing 25 year old SMPS from Aircraft Test Sets.
They can be a mongrel at times due to their mechanical assembly.(PFC and PWM mounted on Vertical Daughter Board)

Has anyone come across a more recent SMPS that could possibly be retrofitted?

ADTS 405 Power Requirement.
Input
Single phase AC in the range 90-260 V
Frequency range 47-440 Hz
DC power option ..24 to 30 V
ADTS 405F ..500 VA

Outputs
5V DC @ 1A
24V DC @ 3A
+/- 15V DC @ 1A
Comparator Output 5V DC