Analogue systems

Hi friends,

I'm new to this group and to the world of modular synths. I have 
found a few AS modules that I want to add to my current synth setup 
and plan to build a custom enclosure to house few modules that I'll 
need. My question is about the power supply. I noticed AS sells racks 
with power supplies but I don't recall seeing any seperate power 
supply modules that can be purchased for custom enclosures like the 
one I plan to build. Am I missing it or does AS not sell power 
supplies seperately? If not is there a power supply that can be 
purchased elsewhere that can power these AS modules?

Thanks in advance!
~Gman