This is a quick Lego prototype of how the steering will work. The steering will be using double steering rods (as seen from the below photo) to avoid a sloppy steering, and it will probably go underneth/beside the main frame and the go up to the drag links.
Originally I wanted to combine the tilting with the steering but I'm missing some vital pieces, and since the Lego I have originates back to 1988 it's impossible to find. But, if you have a set of these please leave a comment!