Freepbx Multiple nodes with mysql wsrep for "poor mans clustering"

I’ve been searching but has anyone ever used a MariaDB and wsrp for clustering multiple freepbx nodes?
I don’t think realtime asterisk is an option with Freepbx. But if there is a plugin or something that might make it easier.

so at a topology I woudl have a cisco router with cube software spraying the calls to two instances behind it. eg pbx1, and pbx 2.

Than I would have the phones set to register to the 2 nodes.