After scraping the rhino (for the most part) I picked up this defiler at bitz trading. The traditional defiler design is by far the worst vehicle model in GW, but with some conversions can be salvaged. Here is my salvaging of the model.
I did a lot of looking around for inspiration on making a night lords version of the defiler and sadly the best I could find was a dreadknight looking version of one. As I'm not thrilled with that model either I had to go right to the drawing board for my own take.
To start I flipped over the bottom portion of the model where the legs and torso usually connect and put an extra set of legs in there. I flipped it over because I really like the mechanics on the bottom half and it was easier to flip it than to deal with plasticarding the torso connection area. I did have to trim up a little of the front two sockets that the arms connect to so that all 6 legs touched the ground evenly and the model didn't rock around like an uneven table.
After that I just glued the battle cannon to the front like the brass scorpion conversion that is all over the internet. I put some plasticard pistons and pieces to make it look a little more than just glued to the front.
Finally, to put the Night Lords touch on it it needed to be terrifying. And like the Romans, they love the crucifixion. Since I didn't really want to put the work of nailing Space Marines to little plasticard crosses, I just with with some impaling.
Eventually I'll get it painted and put a finished up shot of it but for now, here are some close ups of the impaled imperial scum. The Night Lords helped them be with their false corpse-god; their disappointment in finding out that he was just a man was delicious.