I think that as far as the SSID information goes, you probably want to look at the AWCVX-MIB file. Specifically, this one is a good place to start:
-- FROM AWCVX-MIB
SYNTAX Integer (0..2007)
DESCRIPTION "Index of the SSID which all 802.11 infrastructure stations shall use for Association. If 0, an access point and its repeaters and other subordinate infrastructure devices will Associate through dot11DesiredSSID. If non-0, an access point and its subordinate infrastructure devices will Associate through the auxiliary SSID with awcDot11AuxSSIDIndex equal to awcDot11InfrastructureSSID."
which, by reading I get the hint to check the following:
-- FROM IEEE802dot11-MIB
SYNTAX OCTET STRING (0..32)
DESCRIPTION "This attribute reflects the Service Set ID (SSID) used in the DesiredSSID parameter of the most recent mlme Scan.request. This value may be modified by an external management entity and used by the local SME to make decisions about the Scanning process."