Here you go. I've included a few pics of the drawer, the full setup, and couldnt resist including the results of my first cook using it. When I began this, I decided to try and use someplace that would bring the air up from under the coals, the DigiQ folks said that using the starter door area would blow ash onto the food. That being said, I ordered another ash drawer from Vision to play around with....roughly $25 plus shipping.
My initial plan was to cut the front off from the drawer and have a welder buddy weld a new metal plate to the drawer, and mount the fan to that. That plan went out the window when my friend was tasked to deploy, and I didnt want to wait for him to get back. I then decided to rivet metal plates to all of the openings, seal them with heat resistant silicon, and mount the fan adapter to the back. While working on it, my son remarked that it kind of looked like Darth Vader's face, and we should make it look like him. Not passing on a chance to get him involved, thats what we did. All in all, it looks OK and works GREAT! Looking back, I could probably have gone with less rivets for a cleaner look, but it is what it is.
I only use this drawer when using the DigiQ, and switch back to the original drawer for all other cooks. Hope this helps.