Thanks for your opinion!
Guess I am still thinking to somehow turning this around, but maybe I would be better of to concentrate onto the other two processes.
Initially I just thought to apply to see my market value, but since the process took so long, I got more invested...
I think I will make Up my mind on an exact number they need to match and otherwise just politely declining their offer. Thanks!
Best case they call you back with an increased offer.