Did you get the Raymarine setup? I'm installing the wind sensor now, running the cable down the compression post, and through the small conduit tube out the base to the bilge area.. the old cable runs down this way, and i'm going to use it as a fish line to run down the new cable. I've installed the iTc-5 above the water tank in the V, and the speed/depth and wind cables will both go there. Then, the Seatalk backbone runs the length of the bilge, under the engine using the existing conduit runs, and up aft of the aft berth to the starboard lazarette where the backbone terminates at a 5-way connector.. from there spurs go to the autopilot, i70, and MFD display on the "pod" on top of the steering pedestal.
If you are going to run speed/depth/wind cables under the sole with the other wire runs, it might be tight in the existing conduit tubes.