Do you have VCA installed on the destination servers or not ? In other word do do update the VCA or is it a clean install ?
You can configure the VCA you plan to deploy from SIM. This includes VCRM server, username and credentials. The only thing you might need SIM for is to configure/replicatie the baseline info.
If you could respond to the questions i can help you deploy clean or update the VCA's in your setup.