Well, I've been picking away at this, and it looks promising. I decided to try and remove the temp controller from the side and move it out of the way. I frigged with it until I gave up and used a small hole saw to open up the front face and look inside. Of course, it was then quite obvious that there was a screw holding it to the side wall. The screw was hidden behind what looked to me to be a temp dial marker (it's a blue comma shaped plug). I just picked it off with my finger and pulled out the screw. Anyway, no damage done, there is a lot of empty space in there. Now the entire unit slides forward on a slot and post (post is under the light at the back), and comes off very easy.
Now I can get it up out of the way and clear the keg. It may still be tight with the ball lock connectors on, which I don't have yet, but I think that it will all fit underneath. I can RTV the controller to the top of the fridge, and that should be that. If necessary, I can probably tear off some of the plastic housing around the controller, but I am going to try and keep this as neat looking as possible.
Now to fit two kegs side by side, I think I have two options. Tear out the door panel, or cut down the shelf guides on one side of the fridge. I think I will try to cut down the side(s), and leave the door panel on, it may be useful. I am working on another keg (which are difficult to source in NS...grrrrr), and once I have that, I will start measuring and ripping and let you know how things are going for those of you interested in using this type of fridge.
I can't post pics, so you'll have to go on imagination for now.