I was interested in a Privilege
39 and also considered moving the helm to main bulkhead. When I asked the broker if it was possible to move the helm he said yes, but it would be expensive. I ended up buying
a Privilege 37 with the helm where i wanted it.
When I think about the steering
on my boat, there isn't anything I would call high-tech. Just lots of pulleys, wire, and steering
quadrant on the rudder
shaft. I would suggest that you look closely at the proposed helm location and figure out how to make long straight wire runs. You can go around some corners with turning pulleys, but you might incur more friction. If it gets too complicated, you might consider a hydraulic steering
push-pull system (like power boats). The hydraulic steering
requires only one cable and it can be routed around bends and curves. I don't know if you would get the same "feel" for weather
helm with hydraulic steering or not.
Sorry I can't provide some actual experience in moving a helm.