I'm sorry to hear about your fight with cancer but glad that you're still here with us to recount the story.
At the end of the day, only you can decide whether it would be best to keep or sell your car due to financial or other personal reasons.
But since you asked, I'll say that I think that you love that car - it is uniquely awesome and I doubt that you're really ready to let it go. So I'd say keep it. Drive it when you can and continue to revel in the pride of ownership.
And never forget, that all of us here are cheering you on every step of the way.