I need help on this, the first note for the F horn would be from Bb to F? And from G# to what note?

Answer: F# would be a F horn's C# (i think that is what you are asking)
a G# would be an Eb (or D#) for Horn
I did the whole line if you would like to reference that:
F E C A Bb C D C D E F G A Bb C# D
Explanation: I am a french horn player, I just know these things.