[rescue] AIX for Apple network server

[rescue at sunhelp.org]

 How hard is it to get the special AIX version which runs on the Apple network
server? I've just seen one today and was thinking about buying it :). Any other 
special things to look for?

 And what's a reasonable price for 500/133? They were asking $500, seems high 
to me, but I guess that's largely because they have no idea what it actually 
is. I could probably get it much cheaper.

 regards,
   Michiel