If you are slightly adventurous you can try to use the blue cloner. It’s a cheap $20 or so device from eBay that can copy HID tags to a T5577-based chip. Hit read near your old card. It’s optimized for cards not implants so you’ll have to pull the case apart and set the antenna parallel over your chip, touching your skin. Hit write and don’t move it until the orange LED goes out. Theoretically it should work - it did in my case. But it has a reputation to brick the tag if you don’t do it right. Cheap, but a nonzero risk.
Option 2 is a Proxmark. These are more favored because they are more reliable products that are designed for RFID diagnostics (HID, Indala, EM, NFC, Mifare Classic, HID SEOS, etc…). I think @TomHarkness is working on a special antenna for the rdv4 that would get reads and writes while the chip is still in the needle assembly. But this route is expensive, near the $300-$350 mark. But it has a much better reliability than the blue cloner.