'Encrypting an existing Redshift Cluster

I have to encrypt our unencrypted redshift cluster with KMS encryption. After going through the docs, normally encrypting the cluster will trigger a classic resize and the cluster will go into read-only mode. We have >150TB worth of data and it can take several days to encrypt that volume of data this way. One of the workaround we identified was to create an encrypted cluster and restore from the snapshot of the unencrypted cluster. I did not find anything about this online, so will this method work?