Hey, I feel your pain. Companies are like children to a founder, and you have described the heroic acts you've taken to save your child. It absolutely sucks to be in your position.

I think it's important to warn "parents" (or future parents) to avoid this particular tragedy, which I think is quite avoidable. I want to encourage people to question the orthodoxy around cloud, that everyone is doing it so its fine, and worse is better anyway, yada yada. It may be insensitive to use your situation to illustrate the downside of cloud vendor lock-in, but my motivation is not to look down on you, but to warn others about this very real, very painful outcome that they court when they make the popular choice.