How to resume replication after we move both primary and replication databases

Hi all,

I need somebody to help me to check if we can resume transaction replication after we move both primary and replication databases.

1. Primary database DB1 and distribution database on server1, 

2. replication database DB2 on server2 

3. We will setup DB mirroring for DB1 on server3

4. We will failover DB1 from server1 to server3

5. We will backup/restore replication database db2 on server4

my question is, how can we resume replication for DB1 on server3 and DB2 on server4? DB1 was failed over from server1, DB2 was restored from server2 backup.

Thanks

David