[GPS_Standard] Power supplies for standalone system with oscillator

[John A. Evans - N0HJ]

Greetings all,

  I'm torn between integrating (either totally, or partially) my board 
with GPS receiver with a 5328a counter or building it totally standalone 
since I have a separate oscillator from a parts 5328a.  I've not been 
able to find one power supply that will power it all with +5V, +12V, and 
something on the order of 20-30V for the oscillator.  Has anyone else 
done this, and if so, what are you using for power for the standalone 
system?

Thanks much,
john - n0hj