Shaun, the only place you are going to have a hard time is where the gas line needs to go between the body and the top of the gas tank. You should be able to run the new line in it's stock location down the side of the frame to the front.
This area will be where you will have to route it somehow. You have to lift the body up off the frame to go in this direction.
Other wise down the side of the frame should not be an issue.
