A couple of thoughts:
1. Asking Trevor is definitely the best path, though as you probably know, he may not be able to get back to you for a few days depending on his workload and bandwidth.
2. If your current Vykari is all silver, a possibility could be a fusion copper/silver Vykari if Trevor is making them. I know he used to have two Vykari versions. My Einvaldi Reference (Vykari’s predecessor) is a fusion cable and is a masterpiece, in my view. It is a phenomenal cable: Ergonomics are exceptional, and it combines the fullness of copper with the clarity of silver- at least with biocellulose-driver ZMF headphones. It also looks incredible- like Mithril, if you are a Lord of the Rings fan.