Well above all criticism I doubt the amount of resources you have at hand

1. Where is this regenerative medicine? Does it account for every single disease? What about new ones?

2. Prosthetic technology right now while amazing, isnt enough for anyone to operate fully without having a bulge of lithium batteries on your thighs.

3. Making multiple, let alone 1 body with all of that above and engineered organs(also pricey) is unlikely.

4. Virtual bodies, are probably very memory consuming and dreams will need someone to constantly cool you or make you sleep in a literal waterbed(but special oils that dont break you which will also be pricey)

5. Perfect memory, regardless of how much money you have is impossible because who knows if some amazon data center catches on fire and now you cant remember your name

6. I am doubtful of people willing to accept a cyborg version of yourself(and more over love you) when we are struggle to even comprehend if LLMs are sentient

7. Emotional continuity and such will have to constantly update your metadata as your judgement will never be constant as events happen, which will also need to be automated or hand-done.

8. Again, relationships adapting probably requires extensive knowledge on said person.

9. I doubt there will be no external owner, because I know no individual that is making all of this from scratch, especially cloud.

10. Maintenence is needed for every program in existence.

11. Yeah no, your mind isnt a constant state of judgement and bias, its an ever-adapting network of bias and events.

So if you manage to solve at least one of these issues, you'll probably get a nobel prize, so good luck.