[CA11] Auto pilot

I have a 38’ Trojan, with twin 454’s. I would like to add auto pilot that can be controlled through my Es78 MFD.

Hydronautic steering uses 12.1 cubic inches full stroke.

Can I just get:
M81120 pump
ACU 150
And EV sensor? ( what one)

Cables?
Hoses?
Adaptors?

Anything else I will need?