Please know that I support you and that it is only my nature to question everything.
I hope you have great success with it. I too have invested a lot of money in this, searching for everything from relief (e.g., a giant worthless Anodyne contraption) to the ultimate, a cure. I too would pay anything for that. I think you have the best chance of success with the cells being injected where the damage lies. In my case, that would be everywhere.
Please post your progress, positive and negative and know that we all support you.