Siege Tower (Lord of the Rings "Orc like)

[Lothar1994]

I need a Siege Tower that looks more like it was made by orcs for a siege map I am making. I need it to have the following animation

Move
Stand
Drop Draw Bridge
Retract Draw Bridge
Death

I know we have a siege tower model already but that one looks like human built it so I won't work for my map.

I have a image of a Lord of the rings Siege Tower as a base, if anyone can make it look as close to it as possible that would be great.