Landraider Concept Design

Here are some sketches that I have been working on for my second Landraider. I want it to be a main focal point for the army, and to match up in awesomeness with the first.I am thinking of really stressing the demonically possessed idea. I think a Bloodthirster torso would be the right size, but I am also thinking I might want to look at some third party mini's too, in order to give it a little different feel.

For the side sponsons I am thinking of doing demonic arms. A few questions, do you think that it is better to have the lascannons held in a fist, be the hand, or coming out of the wrist? Also what do you think about the demonic chains holding the demon to the Landraider, Good idea or not?