Im using one cylinder and as Ramona said a valve set up
here an example of a basic set up the one on the left is single wheel and right a second helm station
Ill find a sketch with an auto pilot and add it later on
if you open this link below it will give you a few different options on adding auto pilots and dual helms so in the fisher 32you could have a extra helm inside the cabin and one in the cockpit around page 6 in this pdf
www.hydrive.com.au/wp-content/uploads/2015/08/HD-SERIES-MANUAL.pdf I'm fitting a 12 volt actuator valve when I engage the autopilot you can add simple ball valves so you manually turn them open and shut.
In the Hydrive web site there also a page where they will assist you in the design for your fisher and work out the cylinder size and helm unit that would work well on your boat.
My system is a over kill much larger than needed but it was the shortest cylinder stroke in the HD series which I wanted 9 inches and its bronze not aluminium.
It up to you how many turns lock to lock you want on your wheel I chose the 105 helm as it ends up giving me 2 turns lock to lock and as it over size an for my boat it will be very easy wheel to turn. I have no check valve fitted to the helm unit so the wheel will not stay still unless I am holding it it will also give me rudder feel. In theory

ha ha
I will be fitting a couple of T's in the line and blanking them off till I buy a autopilot but Ill probably buy the pump soon any way and complete all the hydraulic then just leaving the the control unit and compass .
Simrad have just released a solid state compass which Raymarine have had for awhile in there evo autopilots
The autopilot pump you purchase must match in with the capacity of the cylinder ( ram)that's important)
If yopu have lots of spare boat dollar have a look at the Garmin
buy.garmin.com/en-US/US/on-the-water/ghp-20-marine-autopilot-system-with-smartpump/prod118877.htmlin the video below there's a few connecting vids that will help you understand the hydraulic system the garmin has a nice feature as well as there brushless pump motor its in the second vid a couple of in line valves that as soon as you grab the wheel while it in autopilot and you turn it the autopilot disconnects giving you the wheel