Audio restoration - getting rid of distortion?

Hi all,

I've got some trumpet tracks that were recorded too hot resulting in mild distortion (this is beyond a typically acceptable edgy sound). Re-recording is not an option, unfortunately. Any ideas for cleaning this up? Using tools like Vintage Warmer just makes the sound "woolier", and de-essing and EQ are only marginally successful. Anything that can read the core signal and dial it back a few notches?

The distortion is throughout a 4min track, almost every note played. I've tried the Izotope de-clipper and not had much success. I'll give it another run, but I'm afraid I might be stuck.

I think the mic was overdriven, but the recording level of that nasty signal was ok.

 
That's a tough one...
 
How complicated is the horn line? 
You might be able to pull a little "MIDI wizardry" if you have some nice horn samples.  

I have only heard of one way (hard) to reduce distortion (not digital clipping) on audio if re-recording is not an option.  For example if an electric guitar was recorded with a fuzz pedal and it is way to much "of the good thing" for the mix.  And that is to play the same notes as instrument on a midi, find some suitable clean sound,  and  mix it along with the original instrument (but lower in volume).