You would want to consult with an anesthesiologist that has RSD experience. A sympathetic block (via flourishing) that would last a few weeks post surgery would be a good idea, as well as additional blocks as needed. A Ketamine infusions a week before the surgery, Ketamine as a part of the anesthesia, Ketamine infusions once a week post surgery for 4 to 6 weeks would be ideal. The big thing is to have insurance pre-approvals for whatever you and your team of docs decide you need. Especially considering you already seem susceptible to spread!

You won't have time or be well enough to deal with fighting with your insurance after your surgery, as you know. Hopefully, you won't have a hard time, but better to be safe than sorry.

Good luck!