Your displacement is at the limit (24k) of wheel pilot systems (for example Raymarine's type 1 units).
I'd not want to be solo on the Atlantic with a autopilot that was at the limit, for that reason I'd suggest you steer away from wheel pilots (pun intended).
Heck, in my opinion my 20k displacement Irwin 38 CC is too heavy for a wheel pilot, especially once loaded for cruising. Fuel and water (full) will add 2k.
Lessons learned are opportunities earned.