Mapuc,
The links below have Orders of Battle for Warsaw Pact and NATO forces in the 1988-89 time frame. They have decent data for airfield locations and units as they would be at the start of a campaign (pre-mobilization in most cases). Actual locations of the air bases would be more difficult, although it's probably not critical at the scale of CMANO. Many of them can be picked up from a scan of Google Earth/Maps (many are civilian or military airports still), including underground bunkers in some cases. I also have a reference book from the early 90's with coordinates on most of the major bases if you really needed it.
Warsaw Pact
http://www.societaitalianastoriamili...-June-1989.pdf
NATO/WP
http://www.microarmormayhem.com/
Locations of SAMs are a lot harder to come by. There are websites (don't have the links now) that depict the layout of Soviet and NATO theater SAM defenses during this time frame, but I've never seen smaller-scale, base-type SAM deployments anywhere. I suspect you would have to make some general assumptions about how existing total SAM assets would be divided out among the available bases.
Hope that helps,
Mike