Replace The CQR with a Danforth (or Fortress) Rather Than Buy A Fisherman's
I sailed all over the West Coast more or less full time for 5 years. We had a CQR, Danforth and Fisherman's anchors on board.
The Fisherman was used once. The CQR was the bower and we used that a lot with great success, so your Rocna will be great as a primary anchor. If you have the cash i would change the CQR for a Danforth (or Fortress).
I used the Danforth in a number of kedging operations and it worked well. Typically it was used to restrict swinging room either fore and aft or as a running mooring. You could do this with the CQR but the Danforth was pretty reliable and set first time. I used the Danforth on a few occasions as a second bower and once in tandem in front the CQR; strong winds. The latter was a pain in the butt.
So keep the Rocna, don't buy a fisherman's and if you have the cash get a Danforth or Fortress. My current yacht has two CQRs, as a kedge they are a pain to launch from the dinghy, being too awkward.
"'...contradictions .... are deliberate exercises in doublethink." Orwell from 1984