Purcell orchestration (Funeral Sentences)

Hi to all.

Just wanted to post an orchestration I've attempted of Purcell's "Funeral Sentences".
Correct me if I'm wrong, but I think this was originally written for SATB choir, with timpani and a quartet of trumpets.
Here I've arranged the piece for full symphony orchestra.

Not sure if it's been orchestrated like this before, but haven't heard any other versions in this instrumentation.

I used an old midi file as the basis for my score: so some of the trills and drum rolls look a bit strange.
Think they sound more realistic like this though: so it may not be such a bad thing.

Haven't bothered with slurs, as the score is designed for midi rendition only. 
 

Hope you enjoy!