Well yes, I have decided (finally) that an ork model would be easier, as I all ready have lots of orks that I don't use to chop up.
Also I do like the idea of making a bridge out of scaffolding.
Here is my completely home built Cannon for the front of the boat. My dad came up with the idea of an ork sitting on it.
It is still in mid build, but as i speak I am painting it and will post more pictures when it is finished.
Thanks for the motor recommendations