Horn Line 1 of Prelude Begun

I've begun the process of transposing my Horn 1 line in the Prelude. I have to call it "Horn 1" as this is a five part piece, and therefore doesn't fit soprano, alto, tenor, bass type part writing. I've so far found it a little challenging to distinguish between the voices, and often don't know which voice to give distinct separate melodies lines to as they appear randomly in the music. Some of it even goes so far as to create a single three-note chord in the treble staff with notes so close together, they have to write out a separate beam for the soprano next to it! Very funny looking, and probably the only time I have ever seen this in music.