bitcoin cash – Split BCH out of BTC and then BSV out of BCH?

I have an old BTC wallet from before the BCH split.
I think I can still split the BCH out of it, but then would I be able to split the BSV out of these BCH?
If that’s possible, is there a special procedure?

I’m thinking :

  1. Send full BTC wallet to some other address (to secure them)
  2. Import the private key of the original BTC wallet in Electrum Cash to get the BCH
  3. Send the BCH to another address (to secure the BCH)
  4. Split the BCH into BSV from the original BCH wallet

Would that work?