Migrating over to HA w/ GFiber

[Ikyo]

I am in the process of attempting to migrate over to HA. I am working on getting a duplicate machine to make things easier, but that has proved to be a little difficult without paying a small fortune.

While I am working on doing that, I was going to get some of the initial configuration changes done on my current machine. I was going to enable CARP on the LAN interface. I currently have the OPNSense configured like this:

GFiber - >OPNSense (10.0.0.1) -> Cisco Nexus (10.0.0.2)

TMO HSI (also goes in as WAN 2)

The Cisco Nexus handles all of my inter-VLAN routing. The only thing that currently hits the OPNSense box is the traffic destined for the internet. With it configured like this, I had to create Hybrid Outbound NAT Rules. They are an alias for all of the IP Ranges on the VLANs that use either the GFiber or TMO HSI connections. They map to the GFiber or TMO IP address depending on which connection they are using.

I am believing that all of this would stay the same. The only changes would be:

LAN Address would change to 10.0.0.x (I would probably set it to 3)

CARP VIP LAN Address would be set to 10.0.0.x (It would go to .1 so it matches the original configuration)

Is this correct for getting some of the initial setup done or is there a better/correct way of doing this?