90k-140k sounds about right, depending on how well you can negotiate and sell yourself. You also need to take into account taxes and considerably higher costs of living compared to Germany.

The biggest problem for you will be getting a visa. There are relatively few startups who would go through the trouble of sponsoring you a visa, unless you bring something really exceptional to the table. Your profile doesn't strike me as something that would be considered by "big" companies who typically sponsor H1B's since they often filter by college degree.

That is assuming you are eligible for a visa. An H-1B visa requires a Bachelor's degree or equivalent experience. Your experience may be sufficient, but proving that is easier said than done. As far as I remember 3 years of experience are generally considered equivalent to one year of college, which would mean that you need 12 years. But you shouldn't trust me on this and look it up instead.