I do not understand "mac and bssid conversion". You can authenticate devices by MAC address, to BSSID Wireless LANs.
APs are running different versions of SmartZone firmware, which require a SmartZone controller to manage them.
A SmartZone controller can manage one Zone (SZ-100, vSZ-E) with one firmware version, or can manage multiple Zones (SZ300, vSZ-H) that can have different firmware versions.
Do you have a local Ruckus reseller, who offers advice for network planning if you might need other hw/sw?