SmartZone 144 in redundancy with ZoneDirector

[UB]

Hello,

We currently have 67 Ruckus access points managed by two ZoneDirector 1200 in high availability. Would it be possible to add a single SmartZone 144, as the primary controller, in redundancy somehow with the two ZoneDirector?

I know we would have to re-purchase licenses for all 60 APs, but is this kind of mixed redundancy possible?

Thanks in advance.