Just wanted to say 'welcome' and glad you've come to the SCS/Pain Pump forum......
I am so sorry tho, for what you are going thru!
I can certainly see your concern! You're being left with few options, all of which appear to be 'guess work' from your physicians.

You are doing a good thing by checking around. I certainly wouldn't commit to any of these options until I've researched all there is to know.
And you said your insurance is not covering these procedures!? oh my.
My first instinct would be to suggest doing a trial before you make any decisions.
So, you've already had a pump and it is still in you, but you don't use it?

There are a couple more members here at NT who come to mind. I think they would be able to offer some good input. I'll track them down and point them to your post and see if they've got some good input for you.

Stick around ok! There are SO many caring folks here...
We continue to learn from one another as we share our experiences.
Caring
Rae