Unix sources

[Russell Shanks]

	I'm posting this for a friend of mine who's interested in
 setting up his own Unix box.  He was wondering what kind of deal
 AT&T has (i.e. cost and availability of source files) to offer
 someone who wants to do his own porting. I'm not sure what kind
 of machine he has but I believe its an 8-bit Z80 running CPM
 currently.

	Thanks,
		Russell Shanks
		pa1041 at sdcc13.ucsd.edu