Hail friend.
I'm replying to this thread just to say that I am having a wee attempt at modeling what you need. Please bear in mind I am doing this as an entertainment thing, not as a full time mod-job request. I will send over what I have when I am finished, for you to use as you wish. My knowledge of the 40k universe is pretty decent, so I won't be adding 'unrealistic' embellishments.
If you want to contact me, then drop me an email at
alithediabetic@hotmail.com
(spam bots beware, my email is too holy for you)