That scheme sounds great, It'd be awesome to see a "mid" corruption force of DG. Will it not be tricky painting them all fully assembled?
It's a really big thing for me, seeing as up till about a year ago everything I painted I did in single pieces. And it took a long time to get models completed. Between playing more games while travelling and the new techniques you can get with some of these new paints, I think it will be okay. Not to say that getting to some parts of the model will be tricky, but it should be worth it in the end.