That sounds correct to me.
Although you probably already have IP, DHCP and firewall settings applied to ether2.
If that is the case, just move these from ether2 to the bridge, no need for duplication here.
And for the bridge the use-ip-firewall setting is not needed if your bridge would just be a logical switch.
The use-ip-firewall setting is only needed when you want to filter traffic that normally wouldn’t leave the bridge (e.g. traffic from your ether2 connected PC to a wireless device)