Question for spreaded melody lines.

Hi Mike,
@Mike Verta
very good class so far, probably from the one I know from you the most well structured one, I have to say.
I am at 4 hours around and I did like 3 pages of notes. But anyways, what I want to ask you something. I have actually written a piece for 2 Handed piano and orchestrated it in the other threat (piece is called Homeride). While somehow I passed through the orchestrational process and I am somehow finding it ok, I stepped over a few things which have left me a bad taste:
1. How do you manage to orchestrate a melodic which goes over the range of the instrument? You know..I had written my melody and the starting note was somehow on a middle C whilst the ending note was a way up higher which caused me problems during the orchestration. When I hand over the melodic statement lets say to the trumpets, then it sounds a bit dull for the first 2 bars and sounds good for the last 2 bars. With french horns the other way around. So of course I thought..man, you can split the voices..first 2 bars horns, last 2 bars trumpets..but I don´t find that sexy.
2. So ..do you avoid writing melodic lines which lets say go more than over one octave? Or do you just say: If that doesn´t work I hand over the melody to another group of instruments.

Also I checked out different keys, like my idea was in C Maj. I tested it by transposing it to F. So in F there were coming other problems..like the first 2 bars were sounding good for trumpets, while the last 2 bars sounding almost too harsh because the trumpets really start to be bitchy very up there.
So in the end I think..ok..keep the melody..or..maybe change the melody and keep the melodic statement within one octave to avoid such problems..?

Maybe you can shed some light on that?

Here are both tracks, piano and orchestra version. Just for the reference.

https://www.dropbox.com/s/qmt2r3v7gwiydz0/Alexander_Schiborr__Homeride_on_my_sexy_pony.mp3?dl=0



Thank you, and if you have no time..no problem..that is not urgent.

PS: I still have spots where I overwrite..I am actually trying to avoid it but it is still happening here and there.
So to practise that I wrote a short fanfare similiar to yours and I will work through the whole presets to build up presets and version of that, like you did. Here is the idea.
https://www.dropbox.com/s/z9a4vht6nqy83xa/Alexander_Schiborr_Exercise_Comp_9_Fanfare.mp3?dl=0