That is a nice setup. Any changes you make will not be as robust, reliable or efficient. You certainly can move the wheel, there are plenty of tiller to wheel conversions out there and yours would be a similar job to any of those. It won't be cheap and it won't be easy.My steering set up.
I suggest investing in a good autopilot instead of moving the wheel. You could also build raised seats behind, or aft but to either side of, the wheel if you want to sit and have better visibility for manual steering. Try sitting on a milk crate in the corner of the cockpit seat for height. I bet you would be at a good height for line of sight and still reach the wheel. A couple of pedestal seats would be cheaper and easier than moving the wheel.